Czerniak oka
Etiologia i przyczyny

Czerniak oka, stanowiący 3-5% wszystkich czerniaków, jest najczęstszym pierwotnym nowotworem złośliwym gałki ocznej u dorosłych, charakteryzującym się wysoką agresywnością i zdolnością do przerzutów. Kluczowe mutacje genetyczne dotyczą genów GNAQ i GNA11 (występują u 71-93% pacjentów z czerniakiem błony naczyniowej), które prowadzą do stałej aktywacji szlaków sygnałowych białek G. Inne istotne mutacje obejmują BAP1 (związany z wysokim ryzykiem przerzutów), SF3B1 (opóźnione przerzuty) oraz EIF1AX (lepsze rokowanie). Monosomia chromosomu 3 i zysk chromosomu 8q są dodatkowymi markerami złego rokowania. Lokalizacja guza w błonie naczyniowej (naczyniówka 85-90%, ciało rzęskowe 5-8%, tęczówka 3-5%) ma znaczenie prognostyczne – czerniaki tęczówki cechują się najniższym ryzykiem przerzutów (~5% w 5 lat), podczas gdy guzy ciała rzęskowego i naczyniówki wykazują ryzyko około 20%. Czerniak spojówki, rozwijający się często na podłożu pierwotnej nabytej melanozy (PAM), wykazuje mutacje promotora TERT, NRAS i NF1.

Etiologia czerniaka oka

Czerniak oka (melanoma oculi) jest najczęstszym pierwotnym nowotworem złośliwym gałki ocznej u dorosłych, stanowiąc około 3-5% wszystkich przypadków czerniaka. Mimo że jest to stosunkowo rzadki nowotwór, charakteryzuje się dużą agresywnością i potencjałem do tworzenia przerzutów. Etiologia czerniaka oka nie jest w pełni poznana, jednak badania naukowe zidentyfikowały szereg czynników, które mogą mieć wpływ na rozwój tego schorzenia.123

Czynniki genetyczne

Zmiany genetyczne odgrywają kluczową rolę w patogenezie czerniaka oka. W przeciwieństwie do czerniaka skóry, czerniak oka charakteryzuje się stosunkowo niewielką liczbą zmian genetycznych, które jednak są dobrze scharakteryzowane i mają istotne znaczenie dla biologii nowotworu.45

Najczęstsze mutacje występujące w czerniaku błony naczyniowej (uveal melanoma) dotyczą genów GNAQ i GNA11, które kodują podjednostki alfa białek G. Mutacje te występują u 71-93% pacjentów z czerniakiem błony naczyniowej i są wzajemnie wykluczające się.678 Białka G działają w połączeniu z receptorami sprzężonymi z białkami G, a ich mutacje prowadzą do stałej aktywacji szlaku sygnałowego, co skutkuje niekontrolowanym wzrostem komórek.9

Inne ważne zmiany genetyczne związane z czerniakiem oka obejmują mutacje w genach:1011

  • BAP1 (BRCA1-associated protein 1) – mutacje w tym genie supresji nowotworowej są związane z wysokim ryzykiem rozwoju choroby przerzutowej
  • SF3B1 (splicing factor 3b subunit 1) – mutacje w tym genie wiążą się z opóźnionym wystąpieniem przerzutów
  • EIF1AX (eukaryotic translation initiation factor 1A X-linked) – mutacje w tym genie są związane z niskim ryzykiem przerzutów i lepszym rokowaniem

1213

Dodatkowymi wskaźnikami złego rokowania są zysk chromosomu 8q oraz utrata chromosomu 3 (monosomia 3).1415 Monosomia 3 silnie koreluje z występowaniem przerzutów.16

Czerniak tęczówki wiąże się z rzadszym występowaniem mutacji BAP1 i SF3B1, natomiast częściej obserwuje się mutacje BRAF, podobnie jak w czerniaku skóry.17 Czerniak spojówki charakteryzuje się dodatkowymi mutacjami, takimi jak mutacje promotora TERT, NRAS oraz NF1.18

Czynniki dziedziczne

Choć większość przypadków czerniaka oka rozwija się sporadycznie, istnieją rzadkie przypadki rodzinnego występowania tego nowotworu. Dziedziczne formy czerniaka oka są najczęściej związane z mutacjami germinalnej linii komórkowej w genie BAP1.1920

Zespół predyspozycji do nowotworów związany z mutacją BAP1 (BAP1 tumor predisposition syndrome) zwiększa ryzyko rozwoju nie tylko czerniaka błony naczyniowej, ale także międzybłoniaka, raka nerki i czerniaka skóry.2122 Osoby z mutacją germalną BAP1 zwykle rozwijają czerniaka oka w młodszym wieku (między 30 a 59 rokiem życia).23

Inne geny, których mutacje germinalne mogą być związane z rodzinnym czerniakiem oka, to PALB2 i MBD4.2425

Czynniki fenotypowe

Istnieje wyraźna zależność między fenotypem pacjenta a ryzykiem rozwoju czerniaka oka:2627

  • Kolor oczu – osoby z jasnymi oczami (niebieskimi, szarymi lub zielonymi) mają większe ryzyko rozwoju czerniaka oka w porównaniu do osób z oczami brązowymi
  • Kolor skóry – osoby o jasnej karnacji, które łatwo ulegają oparzeniom słonecznym i trudno się opalają, są bardziej narażone na rozwój czerniaka oka
  • Pochodzenie etniczne – czerniak oka występuje około 8-10 razy częściej u osób rasy kaukaskiej w porównaniu do osób pochodzenia afrykańskiego

282930

Zwiększone ryzyko rozwoju czerniaka oka jest również związane z wiekiem – średni wiek diagnozy wynosi około 60 lat, a najwyższa częstość występowania przypada na przedział wiekowy 70-79 lat.3132 Czerniak oka nieznacznie częściej występuje u mężczyzn niż u kobiet.3334

Zmiany skórne i oczne

Niektóre zmiany pigmentacyjne zwiększają ryzyko rozwoju czerniaka oka:3536

  • Melanocytoza oczna lub oczno-skórna (oculodermal melanocytosis, znamię Ota) – zwiększona pigmentacja błony naczyniowej, skóry wokół oka i innych tkanek. Jest to najsilniejszy czynnik ryzyka rozwoju czerniaka błony naczyniowej
  • Znamiona naczyniówki – „pieprzyki oczne” są zwykle łagodne, ale mogą ulec transformacji nowotworowej
  • Znamiona tęczówki – zwiększają ryzyko rozwoju czerniaka oka
  • Pierwotna nabyta melanoza (primary acquired melanosis, PAM) – zwiększa ryzyko rozwoju czerniaka spojówki

3738

Osoby z zespołem znamion dysplastycznych (dysplastic nevus syndrome), które charakteryzują się występowaniem licznych (ponad 100) nieprawidłowych znamion na skórze, mają zwiększone ryzyko rozwoju zarówno czerniaka skóry, jak i czerniaka oka.394041

Ekspozycja na promieniowanie UV

Rola promieniowania ultrafioletowego (UV) w rozwoju czerniaka oka jest przedmiotem debaty naukowej. W przeciwieństwie do czerniaka skóry, gdzie ekspozycja na promieniowanie UV jest dobrze udokumentowanym czynnikiem ryzyka, związek między ekspozycją na UV a czerniakiem oka nie jest jednoznaczny.4243

Niektóre badania sugerują, że przewlekła ekspozycja na promieniowanie UV może zwiększać ryzyko rozwoju czerniaka oka, szczególnie czerniaka spojówki i tęczówki.4445 Inne badania nie potwierdzają tego związku lub wskazują, że jeśli taki związek istnieje, to jest on słabszy niż w przypadku czerniaka skóry.4647

Ekspozycja na promieniowanie UV z łóżek opalających i lamp słonecznych również może zwiększać ryzyko rozwoju czerniaka oka, choć ta zależność również wymaga dalszych badań.4849

Czynniki zawodowe

Niektóre badania wskazują na związek między wykonywaniem określonych zawodów a zwiększonym ryzykiem rozwoju czerniaka oka:50

  • Spawacze – ekspozycja na intensywne promieniowanie UV podczas spawania może zwiększać ryzyko rozwoju czerniaka oka
  • Rolnicy i rybacy – długotrwała ekspozycja na światło słoneczne
  • Pracownicy przemysłu chemicznego – ekspozycja na określone substancje chemiczne

515253

Lokalizacja i charakter zmian

Czerniak oka może rozwijać się w różnych częściach oka, ale najczęściej występuje w błonie naczyniowej (uvea), która stanowi środkową warstwę gałki ocznej.5455 Błona naczyniowa składa się z trzech części:56

  • Naczyniówka (choroidea) – najbardziej powszechna lokalizacja czerniaka błony naczyniowej (85-90% przypadków)
  • Ciało rzęskowe (corpus ciliare) – odpowiada za 5-8% przypadków
  • Tęczówka (iris) – odpowiada za 3-5% przypadków

57

Lokalizacja czerniaka w obrębie błony naczyniowej ma istotne znaczenie prognostyczne. Czerniaki tęczówki mają najlepsze rokowanie, z około 5% ryzykiem przerzutów w ciągu 5 lat, podczas gdy czerniaki ciała rzęskowego i naczyniówki są bardziej agresywne, z ryzykiem przerzutów sięgającym 20% w tym samym okresie.5859

Czerniak spojówki (conjunctival melanoma) jest rzadszą formą czerniaka oka, rozwijającą się w błonie śluzowej pokrywającej białkówkę i wewnętrzną powierzchnię powiek. W około 75% przypadków rozwija się on na podłożu pierwotnej nabytej melanozy (PAM), w 20-25% z wcześniej istniejących znamion, a w około 25% przypadków bez wyraźnego prekursora (de novo).6061

Mechanizmy molekularne

Na poziomie molekularnym czerniak oka różni się znacząco od czerniaka skóry. Podczas gdy czerniak skóry często charakteryzuje się mutacjami w genach BRAF (około 50% przypadków), NRAS (10-25%) lub utratą funkcji NF1 (14%), w czerniaku błony naczyniowej takie zmiany są rzadkie.62

Główne szlaki molekularne zaangażowane w patogenezę czerniaka oka obejmują:6364

  • Szlak białek G – mutacje w genach GNAQ i GNA11 powodują stałą aktywację białek G, które działają jak przełączniki molekularne, regulujące transport informacji z zewnątrz komórki do jej wnętrza
  • Szlak YAP (Yes-associated protein) – nadmierna aktywacja tego onkogenu w wyniku mutacji GNAQ i GNA11 może prowadzić do rozwoju nowotworów
  • Szlak związany z BAP1 – utrata funkcji BAP1 prowadzi do zaburzeń w regulacji genów i zwiększonego ryzyka przerzutów

Zmiany chromosomalne, takie jak monosomia 3 oraz zysk chromosomu 8q, są silnie związane z agresywnym przebiegiem choroby i zwiększonym ryzykiem przerzutów.6566 Najdokładniejszym czynnikiem prognostycznym jest klasyfikacja molekularna na podstawie profilowania ekspresji genów.67

Czerniak wtórny oka

Warto podkreślić, że czerniak oka może być nowotworem pierwotnym (rozwijającym się bezpośrednio w tkankach oka) lub wtórnym (przerzutowym).68 Czerniak wtórny oka jest znacznie częstszy i stanowi około 90% wszystkich przypadków czerniaka oka. Najczęściej rozwija się jako przerzut czerniaka skóry.6970

Naczyniówka, ze względu na bogate unaczynienie, jest częstym miejscem przerzutów nowotworów z innych części ciała, nie tylko czerniaka skóry. U kobiet najczęstszą przyczyną przerzutów do naczyniówki jest rak piersi, a u mężczyzn rak płuca.71

Predyspozycje genetyczne i rodzinne

Choć większość przypadków czerniaka oka występuje sporadycznie, u około 2-3% pacjentów choroba ma podłoże dziedziczne.72 Pacjenci z dziedziczną formą czerniaka oka często rozwijają chorobę w młodszym wieku.73

Osoby z czerniakiem oka mają 11% wyższe ryzyko rozwoju innych nowotworów, takich jak czerniak skóry i rak nerki, w porównaniu do populacji ogólnej. Może to być związane z obecnością mutacji germinalnych BAP1.74

U pacjentów z zespołem BAP1 często występuje rodzinna historia nie tylko czerniaka oka, ale także międzybłoniaka, raka nerki, raka podstawnokomórkowego skóry i czerniaka skóry.7576

Podsumowanie przyczyn czerniaka oka

Etiologia czerniaka oka jest złożona i wieloczynnikowa. Chociaż dokładna przyczyna rozwoju tego nowotworu pozostaje nieznana, badania naukowe zidentyfikowały szereg czynników genetycznych, fenotypowych i środowiskowych, które mogą zwiększać ryzyko jego wystąpienia.7778

Najważniejsze czynniki ryzyka obejmują mutacje genetyczne (szczególnie w genach GNAQ, GNA11 i BAP1), jasny kolor oczu i skóry, wiek powyżej 50 lat, obecność określonych zmian pigmentacyjnych (melanocytoza oczna, znamiona naczyniówki) oraz prawdopodobnie ekspozycję na promieniowanie UV.7980

Zrozumienie molekularnych podstaw czerniaka oka przyczyniło się do opracowania nowych metod diagnostycznych i terapeutycznych, a także do lepszego przewidywania przebiegu choroby. Dalsze badania nad etiologią tego rzadkiego, ale agresywnego nowotworu są niezbędne do opracowania skuteczniejszych strategii profilaktyki i leczenia.8182

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

  1. 19.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    An increased risk of uveal melanoma is most significantly associated with ocular or oculodermal melanocytosis. Individuals with light-colored eyes, fair skin, and skin that does not tan but burns easily are also at increased risk. The influence of ultraviolet (UV) light exposure remains unclear. If UV light exposure does cause an increased risk, the conferred risk is lower compared to its contribution to cutaneous melanoma. Additional risk factors include cutaneous nevi, cutaneous freckles, iris nevi, and arc welding.[1] […] Various genetic risk variants also exist. A recent discovery highlights a genetic correlation between uveal and cutaneous melanoma on chromosome 5p15.33.[2] Researchers believe that 2 potential genes in this area, telomerase reverse transcriptase (TERT) and CLPTM1 regulator of GABA type A receptor forward trafficking (CLPTM1L), may be responsible for conferring an increased risk of ocular melanoma. Recurrent mutations in the TERT promoter are associated with cutaneous melanoma. Other malignancies are associated with variants of CLPTM1L.
  • #2 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    UM is the most common primary intraocular malignancy in adults, representing 3%5% of all melanomas.1,2 UM most commonly arises from choroidal melanocytes (85%90%), but can also arise from the iris (3%5%) and ciliary body (5%8%).1,3 The median age of diagnosis is approximately 62 years; however, the peak range for diagnosis is between 70 and 79 years.1,4,5 […] A variety of risk factors have been identified, including the presence of light eyes, fair skin, an inability to tan, ocular melanocytosis, dysplastic nevus syndrome, and BAP1 mutations.1013 BAP1 is a tumor-suppressor gene located on chromosome 3 that is mutated in 47% of UM.12 UM in BAP1 germ-line mutants is usually diagnosed between the ages of 30 and 59 years, and is driven by inactivating mutations in the lone functional BAP1 gene, analogous to the frequent loss of chromosome 3 observed in high-risk sporadic disease.14 Interestingly, patients with UM have an 11% higher risk of second malignancies, such as cutaneous melanoma and renal cell carcinoma, than the general population, which may be driven by the presence of germ-line BAP1 mutations.
  • #3 Uveal melanoma: relatively rare but deadly cancer | Eye
    https://www.nature.com/articles/eye2016275
    Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. […] The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation. […] The increased occurrence of uveal melanoma in lighter-skinned people and those with light (blue or grey) colored eyes may be related to less melanin being present in the choroid and retinal pigment epithelium, which results in less protection from ultraviolet light, and increased risk of developing uveal melanoma. […] Oculodermal melanocytosis represents a congenital pigmentary abnormality with slate-grey pigmentation of the periocular skin, sclera, uvea, orbit, meninges, palate, and tympanic membrane and is an important risk factor for development of uveal melanoma.
  • #4 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    Unlike cutaneous melanoma, UM is genetically characterized by a small number of alterations; however, several of these alterations have been well characterized and been found to alter intracellular signaling, surface-receptor expression, and ligand production. While cutaneous melanomas are driven by MAPK activation through mutations in BRAF (~50% of cases), NRAS (10%25% of cases), or loss of function in NF1 (14% of cases), UM rarely harbors such alterations and rather is characterized by point mutations in the G-protein -subunit.35 GNAQ and GNA11 are genes that code for the -subunit of G proteins that act in conjunction with G-protein-coupled receptors. […] Van Raamsdonk et al characterized a mutually exclusive mutation pattern affecting GNAQ/GNA11 in 83% of UM samples.37,38 Further analyses have shown GNAQ/GNA11-mutation rates as high as 96% in metastatic UM samples.3840 Just as there are ethnic variations in UM incidence, there may also be ethnic differences in mutational landscape. Xu et al found a much lower GNAQ/GNA11-mutation burden of 38% in a small Chinese UM population sample.41 Recently, additional mutations that are mutually exclusive to GNAQ/GNA11 but work along similar pathways have been identified.
  • #5 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11(GNA11) genes are the most common genetic variations.[3][4] In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3.[5][6] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain.
  • #6 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11(GNA11) genes are the most common genetic variations.[3][4] In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3.[5][6] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain.
  • #7 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    Unlike cutaneous melanoma, UM is genetically characterized by a small number of alterations; however, several of these alterations have been well characterized and been found to alter intracellular signaling, surface-receptor expression, and ligand production. While cutaneous melanomas are driven by MAPK activation through mutations in BRAF (~50% of cases), NRAS (10%25% of cases), or loss of function in NF1 (14% of cases), UM rarely harbors such alterations and rather is characterized by point mutations in the G-protein -subunit.35 GNAQ and GNA11 are genes that code for the -subunit of G proteins that act in conjunction with G-protein-coupled receptors. […] Van Raamsdonk et al characterized a mutually exclusive mutation pattern affecting GNAQ/GNA11 in 83% of UM samples.37,38 Further analyses have shown GNAQ/GNA11-mutation rates as high as 96% in metastatic UM samples.3840 Just as there are ethnic variations in UM incidence, there may also be ethnic differences in mutational landscape. Xu et al found a much lower GNAQ/GNA11-mutation burden of 38% in a small Chinese UM population sample.41 Recently, additional mutations that are mutually exclusive to GNAQ/GNA11 but work along similar pathways have been identified.
  • #8 Ocular Melanoma: Symptoms, Causes, Stages, Diagnosis and Treatment – OncoDaily
    https://oncodaily.com/oncolibrary/cancer-types/ocular-melanoma-oncodaily
    On a molecular level, mutations in GNAQ and GNA11 are detected in up to 93% of uveal melanomas. BAP1 loss is linked with a higher risk of metastasis and poor outcomes. Conversely, EIF1AX mutations are associated with a better prognosis, while SF3B1 mutations suggest a delayed onset of metastasis. […] Though the link between UV radiation and uveal melanoma is less clear than in cutaneous melanoma, prolonged sun exposure without adequate eye protection may still contribute. Other potential risk factors include exposure to welding equipment, chemical irritants, immunosuppression, and smoking.
  • #9 Melanoma in the Eye | The Law Office Of Gerald Oginski, LLC
    https://www.oginski-law.com/news/melanoma-in-the-eye.cfm
    What causes melanoma in the eye? […] Two genetic mutations GNAQ and GNA11 have long been implicated in the development of uveal melanoma, occurring in up to 80 percent of all cases of this form of cancer. […] Researchers further delved into how these mutations actually cause the cancer, Both of these genes code for what are known as G proteins, which act like molecular switches, regulating the transportation of information from the outside of cells to their cells. […] Upon further analysis of these genes, Guan and his team revealed that genetic mutations in both GNAQ and GNA11 cause the G proteins to be permanently on, letting all forms of signals to pass freely in and out of cells. This leads to the over-activation of the Yes-associated protein (YAP), a potent oncogene that has the potential to cause cancers.
  • #10 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11(GNA11) genes are the most common genetic variations.[3][4] In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3.[5][6] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain.
  • #11 Ocular Melanoma | Treatment & Management | Point of Care
    https://www.statpearls.com/point-of-care/26124
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11 (GNA11) genes are the most common genetic variations. In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3. […] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain. Patients with an SF3B1 mutation tend to obtain a diagnosis 10 years earlier compared to those with other mutations and are more susceptible to late onset of metastases. Additional but less common genetic variations associated with uveal melanoma include phospholipase C beta 4 (PLCB4), cysteinyl leukotriene receptor 2 (CYSLTR2), RNA-binding motif protein 10 (RBM10), and SRSF2 pseudogene 1 (SRSF2).
  • #12 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11(GNA11) genes are the most common genetic variations.[3][4] In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3.[5][6] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain.
  • #13 Ocular Melanoma: Symptoms, Causes, Stages, Diagnosis and Treatment – OncoDaily
    https://oncodaily.com/oncolibrary/cancer-types/ocular-melanoma-oncodaily
    On a molecular level, mutations in GNAQ and GNA11 are detected in up to 93% of uveal melanomas. BAP1 loss is linked with a higher risk of metastasis and poor outcomes. Conversely, EIF1AX mutations are associated with a better prognosis, while SF3B1 mutations suggest a delayed onset of metastasis. […] Though the link between UV radiation and uveal melanoma is less clear than in cutaneous melanoma, prolonged sun exposure without adequate eye protection may still contribute. Other potential risk factors include exposure to welding equipment, chemical irritants, immunosuppression, and smoking.
  • #14 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11(GNA11) genes are the most common genetic variations.[3][4] In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3.[5][6] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain.
  • #15 Ocular melanoma. Melanoma of the eye
    https://dermnetnz.org/topics/ocular-melanoma
    Like other forms of melanoma, ocular melanoma occurs because of genetic changes within melanocytes that cause the cells to proliferate. Further changes in the cells cause them to invade surrounding tissues and to spread elsewhere round the body (metastasise). […] Many reports suggest exposure to sunlight may be an important factor in the development of ocular melanoma. […] Those most at risk of ocular melanoma are of Caucasian race and have fair skin and light iris colour. However, melanoma may also affect those with darker skin and eye colour. […] Melanosis, congenital ocular melanocytosis and neurofibromatosis are also associated with increased risk. […] Patients with conjunctival melanoma tend to have many melanocytic naevi (moles). It is thought that about 20% arise from naevi and about 60-75% within conjunctival melanosis. […] Genetic alterations associated with poorer prognosis in uveal melanoma include: Inactivation of BRCA1 associated protein-1 (BAP1); Subsequent loss of one copy of chromosome 3 (Monosomy 3), which reduces 5 year survival by 50%; Additional chromosome 8 gain.
  • #16 Uveal melanoma – Wikipedia
    https://en.wikipedia.org/wiki/Uveal_melanoma
    Uveal melanoma is a type of eye cancer in the uvea of the eye. […] The cause of uveal melanoma is unclear. Uveal nevi are common (5% of Caucasians), but rarely progress to melanoma. […] Uveal melanoma is distinct from most skin melanomas associated with ultraviolet exposure; however, it shares several similarities with non-sun-exposed melanomas, such as acral melanomas and mucosal melanomas. […] BRAF mutations are extremely rare in posterior uveal melanomas; instead, uveal melanomas frequently harbor GNAQ/GNA11 mutations, a trait shared with blue nevi, nevus of Ota, and ocular melanosis. […] Other risk factors, such as blue light exposure and arc welding, have been put forward, but are still debated in the field. […] The most important genetic alteration associated with poor prognosis in uveal melanoma is inactivation of BAP1, which most often occurs through mutation of one allele and subsequent loss of an entire copy of chromosome 3 (monosomy 3) to unmask the mutant copy. […] Monosomy 3 correlates strongly with metastatic spread. […] The most accurate prognostic factor is molecular classification by gene expression profiling of uveal melanomas.
  • #17 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Genetic mutations linked to iris melanoma share similarities, with rare occurrences of BAP1 and SF3B1 mutations. An alternative form of the B-Raf proto-oncogene, serine/threonine kinase (BRAF), is connected to iris, conjunctival, and cutaneous melanomas. Conjunctival melanoma involves additional mutations such as the TERT promoter, NRAS proto-oncogene (NRAS), and neurofibromin 1 (NF1). TERT genetic variations significantly impact prognosis. Although some studies reveal an association between BRCA2 pathogenic variants and ocular melanoma, others do not.[7][8].
  • #18 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Genetic mutations linked to iris melanoma share similarities, with rare occurrences of BAP1 and SF3B1 mutations. An alternative form of the B-Raf proto-oncogene, serine/threonine kinase (BRAF), is connected to iris, conjunctival, and cutaneous melanomas. Conjunctival melanoma involves additional mutations such as the TERT promoter, NRAS proto-oncogene (NRAS), and neurofibromin 1 (NF1). TERT genetic variations significantly impact prognosis. Although some studies reveal an association between BRCA2 pathogenic variants and ocular melanoma, others do not.[7][8].
  • #19 Risks And Causes Of Eye Cancer | Cancer Research UK
    https://www.cancerresearchuk.org/about-cancer/eye-cancer/risks-causes
    Doctors have identified a rare inherited condition called BAP1 cancer syndrome. Families with this have a change (mutation) in the BAP1 gene. People with this gene change have an increased risk of uveal melanoma, skin melanoma and some other cancers. […] Welding increases the risk of melanoma of the eye in people working as welders. This may be due to exposure to ultraviolet radiation. […] Exposure to artificial UV radiation, such as sunbeds, increases the risk of eye melanoma.
  • #20 Risk Factors for Eye Cancer | American Cancer Society
    https://www.cancer.org/cancer/types/eye-cancer/causes-risks-prevention/risk-factors.html
    This is a rare inherited condition in which family members are at increased risk for eye melanoma, as well as melanoma of the skin, mesothelioma, kidney cancer, and some other cancers. […] Different types of moles (nevi) and pigmented areas in the eye have been linked with an increased risk of eye melanoma. […] Welders, who can be exposed to intense ultraviolet (UV) light when they work, have been found to have a higher risk of eye melanoma. […] Too much exposure to UV light from sunlight (or sunlamps) is a known risk factor for melanoma of the skin. It has also been suggested as a possible risk factor for melanoma of the eye, but studies so far have shown mixed results. […] Some people with eye melanoma have a history of melanoma of the skin, but its not clear if having skin melanoma increases your risk of eye melanoma.
  • #21 Uveal melanoma: relatively rare but deadly cancer | Eye
    https://www.nature.com/articles/eye2016275
    An association between uveal melanoma and atypical cutaneous nevi (dysplastic nevi), common cutaneous nevi, and cutaneous freckles has been established. […] The somatic or germline mutation of BAP1 predisposes patients to develop uveal melanoma, malignant mesothelioma, cutaneous melanomas, basal cell carcinoma, and renal cell carcinoma. […] Various studies have explored the particular association between ultraviolet light exposure and occurrence of uveal melanoma. […] However, published literature does not unequivocally implicate sunlight exposure as a risk factor for uveal melanoma. […] Some studies suggest that chronic ultraviolet light exposure is an independent risk factor for uveal melanoma, whereas other studies contradict this.
  • #22 Ocular Melanoma: Symptoms, Causes, Stages, Diagnosis and Treatment – OncoDaily
    https://oncodaily.com/oncolibrary/cancer-types/ocular-melanoma-oncodaily
    Ocular melanoma develops due to a combination of genetic, environmental, and individual factors. One of the most recognized clinical risk indicators is the presence of choroidal nevi, especially when these show features like a thickness greater than 2 mm or proximity to the optic nerve. Ocular or oculodermal melanocytosis, along with light-colored eyes, fair skin, and a history of frequent sunburns, are also associated with a higher likelihood of developing the disease. […] Familial predisposition plays a role in a minority of cases, but its significant. Germline mutations in genes such as BAP1, PALB2, and MBD4 are increasingly recognized in familial uveal melanoma. For instance, individuals with BAP1 tumor predisposition syndrome have a heightened risk not only of uveal melanoma but also of mesothelioma, renal cell carcinoma, and cutaneous melanoma.
  • #23 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    UM is the most common primary intraocular malignancy in adults, representing 3%5% of all melanomas.1,2 UM most commonly arises from choroidal melanocytes (85%90%), but can also arise from the iris (3%5%) and ciliary body (5%8%).1,3 The median age of diagnosis is approximately 62 years; however, the peak range for diagnosis is between 70 and 79 years.1,4,5 […] A variety of risk factors have been identified, including the presence of light eyes, fair skin, an inability to tan, ocular melanocytosis, dysplastic nevus syndrome, and BAP1 mutations.1013 BAP1 is a tumor-suppressor gene located on chromosome 3 that is mutated in 47% of UM.12 UM in BAP1 germ-line mutants is usually diagnosed between the ages of 30 and 59 years, and is driven by inactivating mutations in the lone functional BAP1 gene, analogous to the frequent loss of chromosome 3 observed in high-risk sporadic disease.14 Interestingly, patients with UM have an 11% higher risk of second malignancies, such as cutaneous melanoma and renal cell carcinoma, than the general population, which may be driven by the presence of germ-line BAP1 mutations.
  • #24 Ocular Melanoma Risk Factors – AIM at Melanoma Foundation
    https://www.aimatmelanoma.org/melanoma-101/types-of-melanoma/ocular-melanoma-riskfactors/
    There is a well-known link between uveal melanoma and errors in a gene called BAP1 that can be passed down in families. […] Other gene mutations that are passed down through families, including mutations in the PALB-2 and MBD4 genes, are also linked to uveal melanoma. […] The size and location of the original melanoma and certain genetic features can help predict how likely ocular melanoma is to spread. […] Larger tumors are at higher risk of spreading than smaller tumors. […] Among uveal melanomas, the location of the melanoma within the uveal tract is linked to how likely the tumor is to spread. […] While up to 20% of ciliary and choroidal uveal melanomas spread to other parts of the body within five years, only about 5% of iris melanomas become metastatic within the same time period. […] Certain chromosomal changes are also linked to metastasis including loss of chromosome 3 and amplification of a part of chromosome 8. […] There are other mutations seen in the primary melanoma such as SF3B1 and EiF1AX that may also predict behavior of uveal melanoma.
  • #25 Ocular Melanoma: Symptoms, Causes, Stages, Diagnosis and Treatment – OncoDaily
    https://oncodaily.com/oncolibrary/cancer-types/ocular-melanoma-oncodaily
    Ocular melanoma develops due to a combination of genetic, environmental, and individual factors. One of the most recognized clinical risk indicators is the presence of choroidal nevi, especially when these show features like a thickness greater than 2 mm or proximity to the optic nerve. Ocular or oculodermal melanocytosis, along with light-colored eyes, fair skin, and a history of frequent sunburns, are also associated with a higher likelihood of developing the disease. […] Familial predisposition plays a role in a minority of cases, but its significant. Germline mutations in genes such as BAP1, PALB2, and MBD4 are increasingly recognized in familial uveal melanoma. For instance, individuals with BAP1 tumor predisposition syndrome have a heightened risk not only of uveal melanoma but also of mesothelioma, renal cell carcinoma, and cutaneous melanoma.
  • #26 Uveal melanoma: relatively rare but deadly cancer | Eye
    https://www.nature.com/articles/eye2016275
    Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. […] The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation. […] The increased occurrence of uveal melanoma in lighter-skinned people and those with light (blue or grey) colored eyes may be related to less melanin being present in the choroid and retinal pigment epithelium, which results in less protection from ultraviolet light, and increased risk of developing uveal melanoma. […] Oculodermal melanocytosis represents a congenital pigmentary abnormality with slate-grey pigmentation of the periocular skin, sclera, uvea, orbit, meninges, palate, and tympanic membrane and is an important risk factor for development of uveal melanoma.
  • #27 Risks And Causes Of Eye Cancer | Cancer Research UK
    https://www.cancerresearchuk.org/about-cancer/eye-cancer/risks-causes
    We dont know what causes most eye cancers. […] The possible risk factors for eye melanoma include: […] This type is more common in older people. The average age of diagnosis is around 60 years. […] Melanoma of the eye is more common in White people than Black, Asian or Hispanic people. […] People with blue or grey eyes are more likely to develop eye melanoma than people with brown eyes. The risk is also higher in people with fair skin, or with freckles. […] People who have abnormal brown spots (pigmentation) on their uvea (called oculodermal melanocytosis) or iris (called iris naevus) are at an increased risk of developing eye melanoma. […] Some families tend to have large numbers of moles on their skin or moles that are unusual (doctors call them atypical). The atypical moles tend to be an irregular shape or colour. They also have a tendency to become cancerous. People with moles like this have a higher than average risk of skin melanoma and eye melanoma.
  • #28 Eye cancer
    https://www.nhs.uk/conditions/eye-cancer/
    Eye melanoma occurs when the pigment-producing cells in the eyes divide and multiply too rapidly. This produces a lump of tissue known as a tumour. […] It’s not clear exactly why this occurs, but the following factors may increase the risk of it happening: lighter eye colour if you have blue, grey or green eyes, you have a higher risk of developing eye melanoma compared with people who have brown eyes […] white or pale skin eye melanoma mostly affects white people and is more common in those with fair skin […] unusual moles if you have irregularly shaped or unusually coloured moles, you’re more at risk of developing melanoma skin cancer and eye melanoma […] use of sunbeds there’s some evidence to suggest that exposing yourself to ultraviolet (UV) radiation from sunbeds, for example, can increase your risk of eye melanoma […] overexposure to sunlight this increases your risk of skin cancer, and may also be a risk factor for eye melanoma. The risk of developing eye melanoma also increases with age, with most cases being diagnosed in people in their 50s.
  • #29 Melanoma in the Eye (Intraocular): Uveal and Conjunctival
    https://www.cancercenter.com/cancer-types/melanoma/types/intraocular-melanoma
    Melanoma in the eye starts when a cell in the eye turns cancerous. A melanoma is a cancer that starts in a specific type of pigmented cell called a melanocyte. […] Intraocular melanoma may develop in either structure. Intraocular melanoma is quite rare, but it most commonly occurs in the uveal tract. […] About 90 percent of intraocular melanomas start in the choroid or ciliary body, according to the American Cancer Society. […] The connection between sunlight exposure and intraocular melanoma is unclear and needs more research. So far, studies have found no strong correlation. […] Certain people are at a higher risk for intraocular melanoma. Having one of these factors doesnt mean someone will get cancer, but it does raise the risk. […] High-susceptibility individuals: Have fair skin and/or light-colored eyes, Have freckles, Are older, Are white, Are male (men are slightly more likely to get eye melanoma than women), Have an inherited condition, such as dysplastic nevus syndrome (these individuals have many abnormal moles), or abnormal brown spots on the iris, choroid or ciliary body, Have a specific mutation in the gene BAP1, or a family history of eye melanomas that may indicate a genetic predisposition.
  • #30 Ocular Melanoma Risk Factors – AIM at Melanoma Foundation
    https://www.aimatmelanoma.org/melanoma-101/types-of-melanoma/ocular-melanoma-riskfactors/
    Ocular melanoma is rare, accounting for only about 3 to 4% of all melanomas. It can affect people of any gender, age, ethnicity and racial background. Some groups are at greater risk for ocular melanoma than others. The risk increases as people get older, and ocular melanoma is more common in people with fair skin and light eyes and in people with certain inherited medical conditions. […] The cause of ocular melanoma is not known, but several risk factors have been identified. […] Risk increases with age. It is slightly more common in men than in women. […] Ocular melanoma is more common in people with fair skin, frequent sunburns, and/or light-colored eyes. It is about 8 to 10 times more common in people of Caucasian descent compared with people of African descent. […] Although the risk factors for uveal melanoma are generally similar to the known risk factors for skin melanoma, uveal melanoma is not thought to be caused by the sun.
  • #31 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    UM is the most common primary intraocular malignancy in adults, representing 3%5% of all melanomas.1,2 UM most commonly arises from choroidal melanocytes (85%90%), but can also arise from the iris (3%5%) and ciliary body (5%8%).1,3 The median age of diagnosis is approximately 62 years; however, the peak range for diagnosis is between 70 and 79 years.1,4,5 […] A variety of risk factors have been identified, including the presence of light eyes, fair skin, an inability to tan, ocular melanocytosis, dysplastic nevus syndrome, and BAP1 mutations.1013 BAP1 is a tumor-suppressor gene located on chromosome 3 that is mutated in 47% of UM.12 UM in BAP1 germ-line mutants is usually diagnosed between the ages of 30 and 59 years, and is driven by inactivating mutations in the lone functional BAP1 gene, analogous to the frequent loss of chromosome 3 observed in high-risk sporadic disease.14 Interestingly, patients with UM have an 11% higher risk of second malignancies, such as cutaneous melanoma and renal cell carcinoma, than the general population, which may be driven by the presence of germ-line BAP1 mutations.
  • #32 Risks And Causes Of Eye Cancer | Cancer Research UK
    https://www.cancerresearchuk.org/about-cancer/eye-cancer/risks-causes
    We dont know what causes most eye cancers. […] The possible risk factors for eye melanoma include: […] This type is more common in older people. The average age of diagnosis is around 60 years. […] Melanoma of the eye is more common in White people than Black, Asian or Hispanic people. […] People with blue or grey eyes are more likely to develop eye melanoma than people with brown eyes. The risk is also higher in people with fair skin, or with freckles. […] People who have abnormal brown spots (pigmentation) on their uvea (called oculodermal melanocytosis) or iris (called iris naevus) are at an increased risk of developing eye melanoma. […] Some families tend to have large numbers of moles on their skin or moles that are unusual (doctors call them atypical). The atypical moles tend to be an irregular shape or colour. They also have a tendency to become cancerous. People with moles like this have a higher than average risk of skin melanoma and eye melanoma.
  • #33 Risk Factors for Eye Cancer | American Cancer Society
    https://www.cancer.org/cancer/types/eye-cancer/causes-risks-prevention/risk-factors.html
    There are a few known risk factors for eye cancer, particularly melanoma of the eye (also known as ocular melanoma or intraocular melanoma). […] The risk of eye melanoma is higher in people with lighter colored skin (and who sunburn or freckle easily) than in people with darker skin tones. […] People with light colored eyes are somewhat more likely to develop melanoma of the eye than are people with darker eye color. […] Eye melanomas can occur at any age, but the risk goes up as people get older. […] Eye melanoma is slightly more common in men than in women. […] People with this inherited condition have many abnormal moles (dysplastic nevi) on their skin. […] People with this syndrome are at increased risk of skin melanoma. They also seem to have a higher risk of developing melanoma of the eye.
  • #34 Ocular Melanoma Risk Factors – AIM at Melanoma Foundation
    https://www.aimatmelanoma.org/melanoma-101/types-of-melanoma/ocular-melanoma-riskfactors/
    Ocular melanoma is rare, accounting for only about 3 to 4% of all melanomas. It can affect people of any gender, age, ethnicity and racial background. Some groups are at greater risk for ocular melanoma than others. The risk increases as people get older, and ocular melanoma is more common in people with fair skin and light eyes and in people with certain inherited medical conditions. […] The cause of ocular melanoma is not known, but several risk factors have been identified. […] Risk increases with age. It is slightly more common in men than in women. […] Ocular melanoma is more common in people with fair skin, frequent sunburns, and/or light-colored eyes. It is about 8 to 10 times more common in people of Caucasian descent compared with people of African descent. […] Although the risk factors for uveal melanoma are generally similar to the known risk factors for skin melanoma, uveal melanoma is not thought to be caused by the sun.
  • #35 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    An increased risk of uveal melanoma is most significantly associated with ocular or oculodermal melanocytosis. Individuals with light-colored eyes, fair skin, and skin that does not tan but burns easily are also at increased risk. The influence of ultraviolet (UV) light exposure remains unclear. If UV light exposure does cause an increased risk, the conferred risk is lower compared to its contribution to cutaneous melanoma. Additional risk factors include cutaneous nevi, cutaneous freckles, iris nevi, and arc welding.[1] […] Various genetic risk variants also exist. A recent discovery highlights a genetic correlation between uveal and cutaneous melanoma on chromosome 5p15.33.[2] Researchers believe that 2 potential genes in this area, telomerase reverse transcriptase (TERT) and CLPTM1 regulator of GABA type A receptor forward trafficking (CLPTM1L), may be responsible for conferring an increased risk of ocular melanoma. Recurrent mutations in the TERT promoter are associated with cutaneous melanoma. Other malignancies are associated with variants of CLPTM1L.
  • #36 Uveal melanoma: relatively rare but deadly cancer | Eye
    https://www.nature.com/articles/eye2016275
    Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. […] The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation. […] The increased occurrence of uveal melanoma in lighter-skinned people and those with light (blue or grey) colored eyes may be related to less melanin being present in the choroid and retinal pigment epithelium, which results in less protection from ultraviolet light, and increased risk of developing uveal melanoma. […] Oculodermal melanocytosis represents a congenital pigmentary abnormality with slate-grey pigmentation of the periocular skin, sclera, uvea, orbit, meninges, palate, and tympanic membrane and is an important risk factor for development of uveal melanoma.
  • #37 Eye cancer (ocular melanoma) – symptoms, staging, treatment | Macmillan Cancer Support
    https://www.macmillan.org.uk/cancer-information-and-support/melanoma/eye-cancer
    Eye melanoma is the most common type of eye cancer. […] Doctors do not know what causes eye melanoma. But there are risk factors that can increase the chance of developing it. […] Uveal melanoma is more common in people with skin that burns easily, fair or red hair, and blue eyes. It is rare in people with brown eyes or if you are Black or Asian. […] The main risk factor for skin melanoma is exposure to ultraviolet rays (UV rays). But it is not clear whether there is a link between UV ray exposure and uveal melanoma. There is some evidence linking conjunctival melanoma to exposure to UV rays through sunlight, sunbeds or sunlamps. […] Eye melanoma is more common in people who have atypical mole syndrome. People with this condition usually have more than 100 moles on their body. […] Conjunctival melanoma usually develops from a rare condition called primary acquired melanosis (PAM). This causes many brown or dark patches (pigmentation) on the conjunctiva, usually in one eye. PAM can be monitored so that any signs of it changing are found early and treated.
  • #38 Ocular melanoma. Melanoma of the eye
    https://dermnetnz.org/topics/ocular-melanoma
    Like other forms of melanoma, ocular melanoma occurs because of genetic changes within melanocytes that cause the cells to proliferate. Further changes in the cells cause them to invade surrounding tissues and to spread elsewhere round the body (metastasise). […] Many reports suggest exposure to sunlight may be an important factor in the development of ocular melanoma. […] Those most at risk of ocular melanoma are of Caucasian race and have fair skin and light iris colour. However, melanoma may also affect those with darker skin and eye colour. […] Melanosis, congenital ocular melanocytosis and neurofibromatosis are also associated with increased risk. […] Patients with conjunctival melanoma tend to have many melanocytic naevi (moles). It is thought that about 20% arise from naevi and about 60-75% within conjunctival melanosis. […] Genetic alterations associated with poorer prognosis in uveal melanoma include: Inactivation of BRCA1 associated protein-1 (BAP1); Subsequent loss of one copy of chromosome 3 (Monosomy 3), which reduces 5 year survival by 50%; Additional chromosome 8 gain.
  • #39 Risk Factors for Eye Cancer | American Cancer Society
    https://www.cancer.org/cancer/types/eye-cancer/causes-risks-prevention/risk-factors.html
    There are a few known risk factors for eye cancer, particularly melanoma of the eye (also known as ocular melanoma or intraocular melanoma). […] The risk of eye melanoma is higher in people with lighter colored skin (and who sunburn or freckle easily) than in people with darker skin tones. […] People with light colored eyes are somewhat more likely to develop melanoma of the eye than are people with darker eye color. […] Eye melanomas can occur at any age, but the risk goes up as people get older. […] Eye melanoma is slightly more common in men than in women. […] People with this inherited condition have many abnormal moles (dysplastic nevi) on their skin. […] People with this syndrome are at increased risk of skin melanoma. They also seem to have a higher risk of developing melanoma of the eye.
  • #40 Risks And Causes Of Eye Cancer | Cancer Research UK
    https://www.cancerresearchuk.org/about-cancer/eye-cancer/risks-causes
    We dont know what causes most eye cancers. […] The possible risk factors for eye melanoma include: […] This type is more common in older people. The average age of diagnosis is around 60 years. […] Melanoma of the eye is more common in White people than Black, Asian or Hispanic people. […] People with blue or grey eyes are more likely to develop eye melanoma than people with brown eyes. The risk is also higher in people with fair skin, or with freckles. […] People who have abnormal brown spots (pigmentation) on their uvea (called oculodermal melanocytosis) or iris (called iris naevus) are at an increased risk of developing eye melanoma. […] Some families tend to have large numbers of moles on their skin or moles that are unusual (doctors call them atypical). The atypical moles tend to be an irregular shape or colour. They also have a tendency to become cancerous. People with moles like this have a higher than average risk of skin melanoma and eye melanoma.
  • #41 Eye melanoma: Symptoms, causes, and risk factors
    https://www.medicalnewstoday.com/articles/183858
    Eye melanoma is usually a secondary cancer, meaning that it begins in a different location in the body and spreads to the eye. In fact, around 9 out of 10 eye melanomas begin in the skin. […] Experts are not sure exactly what causes ocular melanoma. […] Scientists have found links between eye cancer and some genetic changes, but it remains unclear exactly where these changes occur, or if they cause cancer to develop. […] The following factors seem to increase the risk of developing eye melanoma: Eye color: People with blue or green eyes have a higher risk of developing ocular melanoma than those with brown eyes. […] Exposure to ultraviolet (UV) light: Exposure to UV light may increase the risk of conjunctival melanoma. This is a melanoma that occurs on the surface of the eye. […] Dysplastic nevus syndrome: In this condition, a person develops atypical moles, known as dysplastic nevi. These are different to ordinary moles. They have irregular borders, may contain several different colors, and often appear in clusters. Dysplastic nevi are more likely to develop into malignant melanomas than ordinary moles. […] Ethnicity: Eye melanoma is most likely to develop in white people. […] Scientists have not yet proven that sunshine and outdoor work cause eye cancer, but they may increase the risk.
  • #42 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    An increased risk of uveal melanoma is most significantly associated with ocular or oculodermal melanocytosis. Individuals with light-colored eyes, fair skin, and skin that does not tan but burns easily are also at increased risk. The influence of ultraviolet (UV) light exposure remains unclear. If UV light exposure does cause an increased risk, the conferred risk is lower compared to its contribution to cutaneous melanoma. Additional risk factors include cutaneous nevi, cutaneous freckles, iris nevi, and arc welding.[1] […] Various genetic risk variants also exist. A recent discovery highlights a genetic correlation between uveal and cutaneous melanoma on chromosome 5p15.33.[2] Researchers believe that 2 potential genes in this area, telomerase reverse transcriptase (TERT) and CLPTM1 regulator of GABA type A receptor forward trafficking (CLPTM1L), may be responsible for conferring an increased risk of ocular melanoma. Recurrent mutations in the TERT promoter are associated with cutaneous melanoma. Other malignancies are associated with variants of CLPTM1L.
  • #43 Risk Factors for Eye Cancer | American Cancer Society
    https://www.cancer.org/cancer/types/eye-cancer/causes-risks-prevention/risk-factors.html
    This is a rare inherited condition in which family members are at increased risk for eye melanoma, as well as melanoma of the skin, mesothelioma, kidney cancer, and some other cancers. […] Different types of moles (nevi) and pigmented areas in the eye have been linked with an increased risk of eye melanoma. […] Welders, who can be exposed to intense ultraviolet (UV) light when they work, have been found to have a higher risk of eye melanoma. […] Too much exposure to UV light from sunlight (or sunlamps) is a known risk factor for melanoma of the skin. It has also been suggested as a possible risk factor for melanoma of the eye, but studies so far have shown mixed results. […] Some people with eye melanoma have a history of melanoma of the skin, but its not clear if having skin melanoma increases your risk of eye melanoma.
  • #44 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    The role of sun exposure as a risk factor for UM is unclear. Tucker et al found that time spent outdoors, tanning, and rare use of ocular sun protection were risk factors for the development of UM.15 A subsequent meta-analysis found that chronic ultraviolet-light exposure and geographic latitude were not associated with disease, but identified welding as a risk factor.16 Interestingly, a recent study found that posterior choroidal melanomas occurring in illuminated areas were associated with frequent adenine-to-cytosine mutations, whereas ciliochoroidal melanoma arising from unilluminated areas are associated with frequent adenine-to-thymine mutations and light eye color. This suggests both light eye color and sunlight may be independent risk factors associated with different anatomic and mutation profiles.17
  • #45 What is ocular melanoma? – Mayo Clinic News Network
    https://newsnetwork.mayoclinic.org/discussion/what-is-ocular-melanoma/
    Exposure to ultraviolet (UV) light. The role of ultraviolet exposure in eye melanoma is unclear. There’s some evidence that exposure to UV light, such as light from the sun or from tanning beds, may increase the risk of eye melanoma. […] Certain genetic mutations. Certain genes passed from parents to children may increase the risk of eye melanoma.
  • #46 Ocular Melanoma Risk Factors – AIM at Melanoma Foundation
    https://www.aimatmelanoma.org/melanoma-101/types-of-melanoma/ocular-melanoma-riskfactors/
    People who work with welding may be at higher risk for ocular melanoma. […] Certain inherited medical conditions are linked to having a higher risk of ocular melanoma. People with ocular or oculodermal melanocytosis (pigmentation around the eye and forehead, also called Nevus of Ota) have a higher risk of uveal melanoma, while those with primary acquired melanosis or conjunctival nevi are at higher risk for conjunctival melanoma. […] Exposure to UV rays from the sun is a well-known risk factor for skin melanoma. There is some evidence linking UV exposure to some of the subtypes ocular melanoma (possibly uveal melanoma of the iris and conjunctival melanoma), but the majority of ocular melanomas are not linked to UV exposure. […] Uveal melanoma can run in families, although this is not common. Hereditary uveal melanoma is caused by specific inherited DNA errors, called mutations.
  • #47 Uveal melanoma: relatively rare but deadly cancer | Eye
    https://www.nature.com/articles/eye2016275
    An association between uveal melanoma and atypical cutaneous nevi (dysplastic nevi), common cutaneous nevi, and cutaneous freckles has been established. […] The somatic or germline mutation of BAP1 predisposes patients to develop uveal melanoma, malignant mesothelioma, cutaneous melanomas, basal cell carcinoma, and renal cell carcinoma. […] Various studies have explored the particular association between ultraviolet light exposure and occurrence of uveal melanoma. […] However, published literature does not unequivocally implicate sunlight exposure as a risk factor for uveal melanoma. […] Some studies suggest that chronic ultraviolet light exposure is an independent risk factor for uveal melanoma, whereas other studies contradict this.
  • #48 Risks And Causes Of Eye Cancer | Cancer Research UK
    https://www.cancerresearchuk.org/about-cancer/eye-cancer/risks-causes
    Doctors have identified a rare inherited condition called BAP1 cancer syndrome. Families with this have a change (mutation) in the BAP1 gene. People with this gene change have an increased risk of uveal melanoma, skin melanoma and some other cancers. […] Welding increases the risk of melanoma of the eye in people working as welders. This may be due to exposure to ultraviolet radiation. […] Exposure to artificial UV radiation, such as sunbeds, increases the risk of eye melanoma.
  • #49 Eye cancer | NHS inform
    https://www.nhsinform.scot/illnesses-and-conditions/cancer/cancer-types-in-adults/eye-cancer/
    Eye melanoma occurs when the pigment-producing cells in the eyes divide and multiply too rapidly. This produces a lump of tissue known as a tumour. […] Its not clear exactly why this occurs, but the following factors may increase the risk of it happening: lighter eye colour if you have blue, grey or green eyes, you have a higher risk of developing eye melanoma compared with people who have brown eyes […] white or pale skin eye melanoma mostly affects white people and is more common in those with fair skin […] unusual moles if you have irregularly shaped or unusually coloured moles, youre more at risk of developing skin cancer and eye melanoma […] use of sunbeds theres some evidence to suggest that exposing yourself to ultraviolet (UV) radiation from sunbeds, for example, can increase your risk of eye melanoma […] overexposure to sunlight this increases your risk of skin cancer, and may also be a risk factor for eye melanoma. The risk of developing eye melanoma also increases with age, with most cases being diagnosed in people in their fifties.
  • #50 Azthena logo with the word Azthena
    https://www.news-medical.net/health/Causes-of-eye-cancer.aspx
    There are no definitive causes of eye cancers. […] However, there are certain risk factors that are associated with eye cancers. […] There is however no direct association with these risk factors. […] Intraocular melanoma is the commonest form of eye cancer. […] The commonly associated risk factors of this type of eye cancer are (1, 2, 3, 4):- Race or ethnicity Caucasians or whites are at a higher risk of melanomas than African Americans or Asian Americans. […] Age Primary intraocular melanoma commonly occurs after the age of 50. […] Colors of the eyes or iris Those with light colored eyes have raised risk of intraocular melanoma. […] Sun exposure Too much sun exposure or exposure to ultraviolet (UV) rays (either from the sun or tanning beds) raises risk of skin melanomas. […] Inherited conditions Those with conditions like dysplastic nevus syndrome are at a higher risk of eye melanomas. […] Occupational hazards Workers like farmers, fishermen, welders, or chemical and laundry workers have a greater risk of getting eye melanomas.
  • #51 Risk Factors for Eye Cancer | American Cancer Society
    https://www.cancer.org/cancer/types/eye-cancer/causes-risks-prevention/risk-factors.html
    This is a rare inherited condition in which family members are at increased risk for eye melanoma, as well as melanoma of the skin, mesothelioma, kidney cancer, and some other cancers. […] Different types of moles (nevi) and pigmented areas in the eye have been linked with an increased risk of eye melanoma. […] Welders, who can be exposed to intense ultraviolet (UV) light when they work, have been found to have a higher risk of eye melanoma. […] Too much exposure to UV light from sunlight (or sunlamps) is a known risk factor for melanoma of the skin. It has also been suggested as a possible risk factor for melanoma of the eye, but studies so far have shown mixed results. […] Some people with eye melanoma have a history of melanoma of the skin, but its not clear if having skin melanoma increases your risk of eye melanoma.
  • #52 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    The role of sun exposure as a risk factor for UM is unclear. Tucker et al found that time spent outdoors, tanning, and rare use of ocular sun protection were risk factors for the development of UM.15 A subsequent meta-analysis found that chronic ultraviolet-light exposure and geographic latitude were not associated with disease, but identified welding as a risk factor.16 Interestingly, a recent study found that posterior choroidal melanomas occurring in illuminated areas were associated with frequent adenine-to-cytosine mutations, whereas ciliochoroidal melanoma arising from unilluminated areas are associated with frequent adenine-to-thymine mutations and light eye color. This suggests both light eye color and sunlight may be independent risk factors associated with different anatomic and mutation profiles.17
  • #53
    https://www.cancervic.org.au/cancer-information/types-of-cancer/eye_cancer/eye-cancer-overview.html
    certain skin conditions and pigmentation some people have a skin disorder (dysplastic naevus syndrome) which causes moles to grow abnormally, and this can increase your risk. […] occupational exposure being exposed to UV radiation or certain chemicals at work, particularly through welding, can increase your risk.
  • #54 Melanoma of the eye Information | Mount Sinai – New York
    https://www.mountsinai.org/health-library/diseases-conditions/melanoma-of-the-eye
    Melanoma is a very aggressive type of cancer that can spread rapidly. […] Too much exposure to sunlight is an important risk factor for melanoma. People who have fair skin and blue eyes are most affected. […] The choroid layer is the most likely site of melanoma in the eye. This is the layer of blood vessels and connective tissue between the white of the eye and retina (back of the eye). […] Melanoma can also begin on the skin or other organs in the body and spread to the eye.
  • #55 Intraocular Melanoma: Treatment, Symptoms & Definition
    https://my.clevelandclinic.org/health/diseases/6134-intraocular-melanoma
    Intraocular melanoma is a rare cancer that forms inside the eye. It causes melanocytes (cells that produce pigment, or color) to grow out of control. […] With intraocular melanoma, mutated DNA give the wrong instructions to melanocytes in the eye. The melanocytes grow and form tumors. […] The following risk factors make you more likely to develop eye melanoma: Being white, light-colored eyes or skin, being between 70 and 80 years old, family history of uveal melanoma (rare). […] Research shows that intraocular melanoma spreads to other parts of the body in about 40% to 50% of cases. In about 90% of those cases, the cancer spreads to the liver.
  • #56 Melanoma in the Eye (Intraocular): Uveal and Conjunctival
    https://www.cancercenter.com/cancer-types/melanoma/types/intraocular-melanoma
    Melanoma in the eye starts when a cell in the eye turns cancerous. A melanoma is a cancer that starts in a specific type of pigmented cell called a melanocyte. […] Intraocular melanoma may develop in either structure. Intraocular melanoma is quite rare, but it most commonly occurs in the uveal tract. […] About 90 percent of intraocular melanomas start in the choroid or ciliary body, according to the American Cancer Society. […] The connection between sunlight exposure and intraocular melanoma is unclear and needs more research. So far, studies have found no strong correlation. […] Certain people are at a higher risk for intraocular melanoma. Having one of these factors doesnt mean someone will get cancer, but it does raise the risk. […] High-susceptibility individuals: Have fair skin and/or light-colored eyes, Have freckles, Are older, Are white, Are male (men are slightly more likely to get eye melanoma than women), Have an inherited condition, such as dysplastic nevus syndrome (these individuals have many abnormal moles), or abnormal brown spots on the iris, choroid or ciliary body, Have a specific mutation in the gene BAP1, or a family history of eye melanomas that may indicate a genetic predisposition.
  • #57 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    UM is the most common primary intraocular malignancy in adults, representing 3%5% of all melanomas.1,2 UM most commonly arises from choroidal melanocytes (85%90%), but can also arise from the iris (3%5%) and ciliary body (5%8%).1,3 The median age of diagnosis is approximately 62 years; however, the peak range for diagnosis is between 70 and 79 years.1,4,5 […] A variety of risk factors have been identified, including the presence of light eyes, fair skin, an inability to tan, ocular melanocytosis, dysplastic nevus syndrome, and BAP1 mutations.1013 BAP1 is a tumor-suppressor gene located on chromosome 3 that is mutated in 47% of UM.12 UM in BAP1 germ-line mutants is usually diagnosed between the ages of 30 and 59 years, and is driven by inactivating mutations in the lone functional BAP1 gene, analogous to the frequent loss of chromosome 3 observed in high-risk sporadic disease.14 Interestingly, patients with UM have an 11% higher risk of second malignancies, such as cutaneous melanoma and renal cell carcinoma, than the general population, which may be driven by the presence of germ-line BAP1 mutations.
  • #58 Ocular Melanoma Risk Factors – AIM at Melanoma Foundation
    https://www.aimatmelanoma.org/melanoma-101/types-of-melanoma/ocular-melanoma-riskfactors/
    There is a well-known link between uveal melanoma and errors in a gene called BAP1 that can be passed down in families. […] Other gene mutations that are passed down through families, including mutations in the PALB-2 and MBD4 genes, are also linked to uveal melanoma. […] The size and location of the original melanoma and certain genetic features can help predict how likely ocular melanoma is to spread. […] Larger tumors are at higher risk of spreading than smaller tumors. […] Among uveal melanomas, the location of the melanoma within the uveal tract is linked to how likely the tumor is to spread. […] While up to 20% of ciliary and choroidal uveal melanomas spread to other parts of the body within five years, only about 5% of iris melanomas become metastatic within the same time period. […] Certain chromosomal changes are also linked to metastasis including loss of chromosome 3 and amplification of a part of chromosome 8. […] There are other mutations seen in the primary melanoma such as SF3B1 and EiF1AX that may also predict behavior of uveal melanoma.
  • #59 Uveal Melanoma | Skin Cancer | UPMC Hillman Cancer Center
    https://hillman.upmc.com/cancer-care/melanoma-skin/types/uveal
    Uveal melanoma is a rare type of cancer that occurs in the tissues of the eye. […] The cause of uveal melanoma is not yet known. […] Some factors that may increase the risk of getting this type of cancer include: Having fair skin. Having freckles. Skin that burns easily and does not tan. Having blue or green eyes. Older age. […] Uveal melanoma of the ciliary body and choroid is more likely to spread than uveal melanoma of the iris.
  • #60 Conjunctival Melanoma: Terminology, Introduction, Etiology
    https://emedicine.medscape.com/article/1191840-overview
    Together with mucus-secreting goblet cells within the stratified epithelium, melanocytic cells are found in the basal layer of the conjunctiva. These melanocytic cells are of neuroectodermal origin, and melanocytic tumors may arise from these cells. […] Theoretically, conjunctival melanoma may originate from primary acquired melanosis, preexisting nevi, or de novo lesions (without any histologic or clinical evidence of a preexisting lesion). It may be challenging to determine the precursor lesion in many cases. […] Approximately 50% to 75% of cases of conjunctival melanoma arise in a setting of primary acquired melanosis. Typically, primary acquired melanosis is found in middle-aged whites; along with malignant melanomas, it is infrequent in the younger population. […] Evidence indicates that approximately 20% to 25% of patients with conjunctival melanoma have a history or microscopic evidence of a benign conjunctival nevus. […] Approximately 25% of cases of conjunctival melanoma come from de novo lesions. These lesions can be ulcerative, amelanotic, papillary, or fungating.
  • #61 Conjunctival Melanoma: Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/24895-conjunctival-melanoma
    Because conjunctival melanoma is so rare, researchers aren’t sure what causes it. Genetics may play a role, but it’s not contagious and doesn’t spread from one person to another. Two conditions have a more defined link to developing conjunctival melanoma. These are: […] Scientists think exposure to ultraviolet light may also be a risk factor.
  • #62 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    Unlike cutaneous melanoma, UM is genetically characterized by a small number of alterations; however, several of these alterations have been well characterized and been found to alter intracellular signaling, surface-receptor expression, and ligand production. While cutaneous melanomas are driven by MAPK activation through mutations in BRAF (~50% of cases), NRAS (10%25% of cases), or loss of function in NF1 (14% of cases), UM rarely harbors such alterations and rather is characterized by point mutations in the G-protein -subunit.35 GNAQ and GNA11 are genes that code for the -subunit of G proteins that act in conjunction with G-protein-coupled receptors. […] Van Raamsdonk et al characterized a mutually exclusive mutation pattern affecting GNAQ/GNA11 in 83% of UM samples.37,38 Further analyses have shown GNAQ/GNA11-mutation rates as high as 96% in metastatic UM samples.3840 Just as there are ethnic variations in UM incidence, there may also be ethnic differences in mutational landscape. Xu et al found a much lower GNAQ/GNA11-mutation burden of 38% in a small Chinese UM population sample.41 Recently, additional mutations that are mutually exclusive to GNAQ/GNA11 but work along similar pathways have been identified.
  • #63 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11(GNA11) genes are the most common genetic variations.[3][4] In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3.[5][6] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain.
  • #64 Melanoma in the Eye | The Law Office Of Gerald Oginski, LLC
    https://www.oginski-law.com/news/melanoma-in-the-eye.cfm
    What causes melanoma in the eye? […] Two genetic mutations GNAQ and GNA11 have long been implicated in the development of uveal melanoma, occurring in up to 80 percent of all cases of this form of cancer. […] Researchers further delved into how these mutations actually cause the cancer, Both of these genes code for what are known as G proteins, which act like molecular switches, regulating the transportation of information from the outside of cells to their cells. […] Upon further analysis of these genes, Guan and his team revealed that genetic mutations in both GNAQ and GNA11 cause the G proteins to be permanently on, letting all forms of signals to pass freely in and out of cells. This leads to the over-activation of the Yes-associated protein (YAP), a potent oncogene that has the potential to cause cancers.
  • #65 Ocular melanoma. Melanoma of the eye
    https://dermnetnz.org/topics/ocular-melanoma
    Like other forms of melanoma, ocular melanoma occurs because of genetic changes within melanocytes that cause the cells to proliferate. Further changes in the cells cause them to invade surrounding tissues and to spread elsewhere round the body (metastasise). […] Many reports suggest exposure to sunlight may be an important factor in the development of ocular melanoma. […] Those most at risk of ocular melanoma are of Caucasian race and have fair skin and light iris colour. However, melanoma may also affect those with darker skin and eye colour. […] Melanosis, congenital ocular melanocytosis and neurofibromatosis are also associated with increased risk. […] Patients with conjunctival melanoma tend to have many melanocytic naevi (moles). It is thought that about 20% arise from naevi and about 60-75% within conjunctival melanosis. […] Genetic alterations associated with poorer prognosis in uveal melanoma include: Inactivation of BRCA1 associated protein-1 (BAP1); Subsequent loss of one copy of chromosome 3 (Monosomy 3), which reduces 5 year survival by 50%; Additional chromosome 8 gain.
  • #66 Ocular Melanoma | Treatment & Management | Point of Care
    https://www.statpearls.com/point-of-care/26124
    Present in 71% to 93% of patients affected by uveal melanoma, variations in the G-protein subunit alpha q (GNAQ) and G-protein subunit alpha 11 (GNA11) genes are the most common genetic variations. In addition, variations in BRCA1-associated protein 1 (BAP1), splicing factor 3b subunit 1 (SF3B1), and eukaryotic translation initiation factor 1A X-linked (EIF1AX) are also frequently encountered mutations. […] Genetic variations within BAP1, SF3B1, and EIF1AX affect prognosis. Patients with a BAP1 mutation or lacking BAP1 expression have a high risk of developing metastatic disease. An EIF1AX mutation is associated with a low risk of metastatic disease and a better prognosis. Additional indicators of poor prognosis include a gain of chromosome 8q and a loss of chromosome 3 or monosomy 3. […] Other chromosomal variations found in uveal melanoma are chromosome 1p loss and chromosome 6 gain. Patients with an SF3B1 mutation tend to obtain a diagnosis 10 years earlier compared to those with other mutations and are more susceptible to late onset of metastases. Additional but less common genetic variations associated with uveal melanoma include phospholipase C beta 4 (PLCB4), cysteinyl leukotriene receptor 2 (CYSLTR2), RNA-binding motif protein 10 (RBM10), and SRSF2 pseudogene 1 (SRSF2).
  • #67 Uveal melanoma – Wikipedia
    https://en.wikipedia.org/wiki/Uveal_melanoma
    Uveal melanoma is a type of eye cancer in the uvea of the eye. […] The cause of uveal melanoma is unclear. Uveal nevi are common (5% of Caucasians), but rarely progress to melanoma. […] Uveal melanoma is distinct from most skin melanomas associated with ultraviolet exposure; however, it shares several similarities with non-sun-exposed melanomas, such as acral melanomas and mucosal melanomas. […] BRAF mutations are extremely rare in posterior uveal melanomas; instead, uveal melanomas frequently harbor GNAQ/GNA11 mutations, a trait shared with blue nevi, nevus of Ota, and ocular melanosis. […] Other risk factors, such as blue light exposure and arc welding, have been put forward, but are still debated in the field. […] The most important genetic alteration associated with poor prognosis in uveal melanoma is inactivation of BAP1, which most often occurs through mutation of one allele and subsequent loss of an entire copy of chromosome 3 (monosomy 3) to unmask the mutant copy. […] Monosomy 3 correlates strongly with metastatic spread. […] The most accurate prognostic factor is molecular classification by gene expression profiling of uveal melanomas.
  • #68 Eye melanoma: Symptoms, causes, and risk factors
    https://www.medicalnewstoday.com/articles/183858
    Eye melanoma is usually a secondary cancer, meaning that it begins in a different location in the body and spreads to the eye. In fact, around 9 out of 10 eye melanomas begin in the skin. […] Experts are not sure exactly what causes ocular melanoma. […] Scientists have found links between eye cancer and some genetic changes, but it remains unclear exactly where these changes occur, or if they cause cancer to develop. […] The following factors seem to increase the risk of developing eye melanoma: Eye color: People with blue or green eyes have a higher risk of developing ocular melanoma than those with brown eyes. […] Exposure to ultraviolet (UV) light: Exposure to UV light may increase the risk of conjunctival melanoma. This is a melanoma that occurs on the surface of the eye. […] Dysplastic nevus syndrome: In this condition, a person develops atypical moles, known as dysplastic nevi. These are different to ordinary moles. They have irregular borders, may contain several different colors, and often appear in clusters. Dysplastic nevi are more likely to develop into malignant melanomas than ordinary moles. […] Ethnicity: Eye melanoma is most likely to develop in white people. […] Scientists have not yet proven that sunshine and outdoor work cause eye cancer, but they may increase the risk.
  • #69 Eye melanoma: Symptoms, causes, and risk factors
    https://www.medicalnewstoday.com/articles/183858
    Eye melanoma is usually a secondary cancer, meaning that it begins in a different location in the body and spreads to the eye. In fact, around 9 out of 10 eye melanomas begin in the skin. […] Experts are not sure exactly what causes ocular melanoma. […] Scientists have found links between eye cancer and some genetic changes, but it remains unclear exactly where these changes occur, or if they cause cancer to develop. […] The following factors seem to increase the risk of developing eye melanoma: Eye color: People with blue or green eyes have a higher risk of developing ocular melanoma than those with brown eyes. […] Exposure to ultraviolet (UV) light: Exposure to UV light may increase the risk of conjunctival melanoma. This is a melanoma that occurs on the surface of the eye. […] Dysplastic nevus syndrome: In this condition, a person develops atypical moles, known as dysplastic nevi. These are different to ordinary moles. They have irregular borders, may contain several different colors, and often appear in clusters. Dysplastic nevi are more likely to develop into malignant melanomas than ordinary moles. […] Ethnicity: Eye melanoma is most likely to develop in white people. […] Scientists have not yet proven that sunshine and outdoor work cause eye cancer, but they may increase the risk.
  • #70 Melanoma of the eye Information | Mount Sinai – New York
    https://www.mountsinai.org/health-library/diseases-conditions/melanoma-of-the-eye
    Melanoma is a very aggressive type of cancer that can spread rapidly. […] Too much exposure to sunlight is an important risk factor for melanoma. People who have fair skin and blue eyes are most affected. […] The choroid layer is the most likely site of melanoma in the eye. This is the layer of blood vessels and connective tissue between the white of the eye and retina (back of the eye). […] Melanoma can also begin on the skin or other organs in the body and spread to the eye.
  • #71 Cancers Affecting the Retina – Eye Disorders – Merck Manual Consumer Version
    https://www.merckmanuals.com/home/eye-disorders/retinal-disorders/cancers-affecting-the-retina
    Choroidal melanoma is a cancer that originates from the pigment-producing cells (melanocytes) of the choroid. Choroidal melanoma is the most common cancer originating in the eye. It is most common among White people. It occurs most frequently at age 55 to 60. […] Choroidal metastases are cancers that have spread to the choroid from other parts of the body. Because of its rich blood supply, the choroid is often a place to which cancers from other parts of the body may spread. In women, breast cancer is the most common cause. In men, cancers of the lung are the most common causes.
  • #72 Uveal Melanoma: Treating Rare Eye Cancer | Cancer | Eyes and Vision | UT Southwestern Medical Center
    https://utswmed.org/medblog/uveal-melanoma-treatment/
    Uveal melanoma is the most common type of eye cancer. […] People with fair skin color or light-colored eyes (green or blue) are at increased risk of uveal melanoma. Some cases are caused by an inherited gene mutation. […] In nearly every case, there is no clear cause of uveal melanoma. It is not directly associated with UV light exposure or environmental factors, and there is a slight increased risk in men over women. […] There is an increased risk of uveal melanoma in people with fair skin color or light-colored eyes (green or blue). In particular, white people of northern European descent are at the highest risk, although people of any ancestry can develop uveal melanoma. […] Uveal melanoma is usually not passed from parents to children, but 2%-3% of cases are caused by an inherited gene mutation, most commonly in the BAP1 gene. Patients with an inherited gene mutation may develop uveal melanoma at a younger age.
  • #73 Uveal Melanoma: Treating Rare Eye Cancer | Cancer | Eyes and Vision | UT Southwestern Medical Center
    https://utswmed.org/medblog/uveal-melanoma-treatment/
    Uveal melanoma is the most common type of eye cancer. […] People with fair skin color or light-colored eyes (green or blue) are at increased risk of uveal melanoma. Some cases are caused by an inherited gene mutation. […] In nearly every case, there is no clear cause of uveal melanoma. It is not directly associated with UV light exposure or environmental factors, and there is a slight increased risk in men over women. […] There is an increased risk of uveal melanoma in people with fair skin color or light-colored eyes (green or blue). In particular, white people of northern European descent are at the highest risk, although people of any ancestry can develop uveal melanoma. […] Uveal melanoma is usually not passed from parents to children, but 2%-3% of cases are caused by an inherited gene mutation, most commonly in the BAP1 gene. Patients with an inherited gene mutation may develop uveal melanoma at a younger age.
  • #74 Uveal melanoma: epidemiology, etiology, and treatment of primary disease
    https://pmc.ncbi.nlm.nih.gov/articles/PMC5298817/
    UM is the most common primary intraocular malignancy in adults, representing 3%5% of all melanomas.1,2 UM most commonly arises from choroidal melanocytes (85%90%), but can also arise from the iris (3%5%) and ciliary body (5%8%).1,3 The median age of diagnosis is approximately 62 years; however, the peak range for diagnosis is between 70 and 79 years.1,4,5 […] A variety of risk factors have been identified, including the presence of light eyes, fair skin, an inability to tan, ocular melanocytosis, dysplastic nevus syndrome, and BAP1 mutations.1013 BAP1 is a tumor-suppressor gene located on chromosome 3 that is mutated in 47% of UM.12 UM in BAP1 germ-line mutants is usually diagnosed between the ages of 30 and 59 years, and is driven by inactivating mutations in the lone functional BAP1 gene, analogous to the frequent loss of chromosome 3 observed in high-risk sporadic disease.14 Interestingly, patients with UM have an 11% higher risk of second malignancies, such as cutaneous melanoma and renal cell carcinoma, than the general population, which may be driven by the presence of germ-line BAP1 mutations.
  • #75 Uveal Melanoma: What You Need to Know
    https://www.curemelanoma.org/about-melanoma/types/uveal-melanoma
    Uveal melanoma is a rare form of melanoma derived from the melanocytes in the uvea, accounting for only about 5% of all cases of melanoma in the United States. […] The exact cause of uveal melanoma is not fully understood, but it is believed to be related to mutations that occur in the pigment cells of the eye. These mutations can cause the cells to grow and divide uncontrollably, leading to the development of a uveal tumor. The mutations found in uveal melanoma are distinct from those found in other melanoma subtypes. […] Some inherited genetic mutations have been linked to an increased risk of uveal melanoma which can be diagnosed at a younger age, including mutations in the BAP1 gene. […] Exposure to ultraviolet (UV) radiation: While UV radiation from the sun is a known risk factor for skin cancer, it is not clear if it plays a role in the development of uveal melanoma.
  • #76 Uveal melanoma: relatively rare but deadly cancer | Eye
    https://www.nature.com/articles/eye2016275
    An association between uveal melanoma and atypical cutaneous nevi (dysplastic nevi), common cutaneous nevi, and cutaneous freckles has been established. […] The somatic or germline mutation of BAP1 predisposes patients to develop uveal melanoma, malignant mesothelioma, cutaneous melanomas, basal cell carcinoma, and renal cell carcinoma. […] Various studies have explored the particular association between ultraviolet light exposure and occurrence of uveal melanoma. […] However, published literature does not unequivocally implicate sunlight exposure as a risk factor for uveal melanoma. […] Some studies suggest that chronic ultraviolet light exposure is an independent risk factor for uveal melanoma, whereas other studies contradict this.
  • #77 What Causes Eye Cancer? | Ocular Melanoma Causes | American Cancer Society
    https://www.cancer.org/cancer/types/eye-cancer/causes-risks-prevention/what-causes.html
    While we know about some of the risk factors for eye cancer (especially melanoma of the eye, or intraocular melanoma), the exact cause of most eye cancers is not known. […] A great deal of research is being done to learn more about genes inside cells and how changes in them can cause the cells to become eye cancer cells. […] Some people inherit gene changes (mutations) that increase their risk for eye cancer. […] One example is a mutation in the BAP1 tumor suppressor gene. […] A mutated BAP1 gene doesn’t work normally, which can allow cells to grow out of control. […] Most gene changes linked to eye cancer are acquired during a person’s life. […] Scientists are studying these and other DNA changes to learn more about them and how they might lead to eye cancer. […] Some changes might be caused by something in a person’s environment, like intense ultraviolet (UV) radiation.
  • #78 Ocular (eye) melanoma cancer | Cancer Council
    https://www.cancer.org.au/cancer-information/types-of-cancer/rare-cancers/eye-ocular-melanoma
    The cause of ocular melanoma is not known in most cases. However, there are several risk factors including: […] While the causes of ocular melanoma are not known in most cases, protecting yourself from exposure to UV radiation can reduce your risk.
  • #79 Ocular Melanoma – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK551647/
    An increased risk of uveal melanoma is most significantly associated with ocular or oculodermal melanocytosis. Individuals with light-colored eyes, fair skin, and skin that does not tan but burns easily are also at increased risk. The influence of ultraviolet (UV) light exposure remains unclear. If UV light exposure does cause an increased risk, the conferred risk is lower compared to its contribution to cutaneous melanoma. Additional risk factors include cutaneous nevi, cutaneous freckles, iris nevi, and arc welding.[1] […] Various genetic risk variants also exist. A recent discovery highlights a genetic correlation between uveal and cutaneous melanoma on chromosome 5p15.33.[2] Researchers believe that 2 potential genes in this area, telomerase reverse transcriptase (TERT) and CLPTM1 regulator of GABA type A receptor forward trafficking (CLPTM1L), may be responsible for conferring an increased risk of ocular melanoma. Recurrent mutations in the TERT promoter are associated with cutaneous melanoma. Other malignancies are associated with variants of CLPTM1L.
  • #80 Uveal melanoma: relatively rare but deadly cancer | Eye
    https://www.nature.com/articles/eye2016275
    Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. […] The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation. […] The increased occurrence of uveal melanoma in lighter-skinned people and those with light (blue or grey) colored eyes may be related to less melanin being present in the choroid and retinal pigment epithelium, which results in less protection from ultraviolet light, and increased risk of developing uveal melanoma. […] Oculodermal melanocytosis represents a congenital pigmentary abnormality with slate-grey pigmentation of the periocular skin, sclera, uvea, orbit, meninges, palate, and tympanic membrane and is an important risk factor for development of uveal melanoma.
  • #81 What Causes Eye Cancer? | Ocular Melanoma Causes | American Cancer Society
    https://www.cancer.org/cancer/types/eye-cancer/causes-risks-prevention/what-causes.html
    While we know about some of the risk factors for eye cancer (especially melanoma of the eye, or intraocular melanoma), the exact cause of most eye cancers is not known. […] A great deal of research is being done to learn more about genes inside cells and how changes in them can cause the cells to become eye cancer cells. […] Some people inherit gene changes (mutations) that increase their risk for eye cancer. […] One example is a mutation in the BAP1 tumor suppressor gene. […] A mutated BAP1 gene doesn’t work normally, which can allow cells to grow out of control. […] Most gene changes linked to eye cancer are acquired during a person’s life. […] Scientists are studying these and other DNA changes to learn more about them and how they might lead to eye cancer. […] Some changes might be caused by something in a person’s environment, like intense ultraviolet (UV) radiation.
  • #82 Survival For Eye Cancer | Cancer Research UK
    https://www.cancerresearchuk.org/about-cancer/eye-cancer/survival
    We don’t know what causes most eye cancers. But there are some factors that can increase your risk of developing it. […] Sometimes doctors can test for changes in the chromosomes of an eye melanoma that give an idea about how the cancer will behave and how likely it is to spread.