Rak płuca
Diagnostyka i diagnoza

Rak płuca pozostaje najczęstszą przyczyną zgonów onkologicznych na świecie, głównie z powodu późnego rozpoznania. Pięcioletnie przeżycie w stadium I wynosi 88%, podczas gdy w stadium IV spada do 19%. Diagnostyka opiera się na badaniach obrazowych, takich jak RTG, TK, PET-TK oraz MRI, które umożliwiają ocenę lokalizacji, wielkości i zaawansowania guza. Badania laboratoryjne, w tym morfologia krwi, biochemia oraz cytologia plwociny, dostarczają dodatkowych informacji, jednak potwierdzenie rozpoznania wymaga biopsji (bronchoskopia, biopsja igłowa, EBUS, mediastinoskopia, torakoskopia). Nowoczesne metody diagnostyki molekularnej pozwalają na identyfikację mutacji EGFR, ALK, KRAS, ekspresji PD-L1 i innych biomarkerów, co umożliwia personalizację terapii celowanej i immunoterapii. Biopsja płynna stanowi nieinwazyjną alternatywę do monitorowania choroby i wykrywania mutacji.

Diagnostyka Raka Płuca

Rak płuca jest najczęstszą przyczyną zgonów z powodu nowotworów na świecie. Jednym z głównych powodów wysokiej śmiertelności jest fakt, że choroba ta często wykrywana jest w zaawansowanym stadium. Wczesne rozpoznanie raka płuca ma kluczowe znaczenie dla rokowania pacjenta, ponieważ umożliwia wdrożenie skutecznego leczenia i zwiększa szanse przeżycia. Pięcioletnie przeżycie w przypadku rozpoznania raka płuca w stadium I sięga 88% w porównaniu z zaledwie 19% w stadium IV 1.

Badania obrazowe w diagnostyce raka płuca

Diagnostyka raka płuca najczęściej rozpoczyna się od badań obrazowych umożliwiających zobrazowanie płuc i poszukiwanie potencjalnych zmian nowotworowych 2. Badania te pomagają lekarzom zlokalizować podejrzane zmiany oraz ocenić ich wielkość i charakter 3.

Do najczęściej stosowanych badań obrazowych należą:

  • Zdjęcie rentgenowskie klatki piersiowej – zazwyczaj jest to pierwsze badanie stosowane w diagnostyce raka płuca. Większość guzów płuca widocznych jest na zdjęciach RTG jako białawo-szare masy 4. Należy jednak pamiętać, że prawidłowy wynik RTG klatki piersiowej nie wyklucza raka płuca, ponieważ małe guzy mogą być niewidoczne lub maskowane przez inne struktury w klatce piersiowej 56.
  • Tomografia komputerowa (TK) – zwykle jest to kolejne badanie po zdjęciu RTG klatki piersiowej 7. TK dostarcza szczegółowych, trójwymiarowych obrazów płuc i okolicznych tkanek, co pozwala na wykrycie bardzo małych zmian, które mogą być niewidoczne na standardowym zdjęciu RTG 8. Badanie TK może pokazać dokładną lokalizację, wielkość i kształt guza, a także ocenić, czy nowotwór rozprzestrzenił się do okolicznych węzłów chłonnych 9.
  • Pozytonowa tomografia emisyjna (PET) lub PET-TK – badanie to może być wykonane po TK, jeśli wyniki wskazują na obecność raka 10. W badaniu PET wykorzystuje się radioaktywnie znakowaną glukozę, która gromadzi się w aktywnych metabolicznie komórkach nowotworowych. Połączenie PET z TK (PET-TK) pozwala na dokładniejszą lokalizację zmian nowotworowych i ocenę ich aktywności metabolicznej 11. PET-TK pomaga również określić, czy rak rozszerzył się poza płuca, co jest istotne w procesie ustalania stadium zaawansowania choroby 12.
  • Rezonans magnetyczny (MRI) – wykorzystuje fale radiowe i silne pole magnetyczne do tworzenia szczegółowych obrazów tkanek miękkich. MRI jest szczególnie przydatny w ocenie ewentualnego zajęcia przez nowotwór struktur centralnego układu nerwowego, w tym mózgu 13.

Badania laboratoryjne i cytologiczne

Badania laboratoryjne mogą dostarczyć dodatkowych informacji o stanie zdrowia pacjenta oraz pomóc w diagnostyce raka płuca 14:

  • Morfologia krwi (CBC) – mierzy liczbę i jakość białych krwinek, czerwonych krwinek i płytek krwi. Badanie to dostarcza podstawowych informacji o ogólnym stanie zdrowia pacjenta przed rozpoczęciem jakiegokolwiek leczenia 15.
  • Badania biochemiczne krwi – mierzą określone substancje chemiczne we krwi. Pokazują one, jak dobrze funkcjonują określone narządy i mogą pomóc wykryć nieprawidłowości 16.
  • Cytologia plwociny – plwocina, czyli śluz odkrztuszany z płuc, może być badana pod mikroskopem. Badanie to może ujawnić obecność komórek nowotworowych 1718. Czułość tego badania jest jednak ograniczona i ujemny wynik nie wyklucza raka płuca 1920.

Biopsja – kluczowy element diagnostyki

Biopsja jest procedurą, podczas której pobiera się próbkę tkanki do badania w laboratorium. Jest to jedyny pewny sposób potwierdzenia rozpoznania raka płuca 2122. Pobrany materiał jest badany pod mikroskopem, co pozwala określić typ raka płuca i zaplanować odpowiednie leczenie 23.

Istnieje kilka metod wykonywania biopsji w przypadku podejrzenia raka płuca:

  • Bronchoskopia – procedura, w której lekarz wprowadza cienką, elastyczną rurkę (bronchoskop) przez nos lub usta do dróg oddechowych. Bronchoskopia umożliwia bezpośrednie obejrzenie wnętrza oskrzeli oraz pobranie próbek tkanki do badania 24. Obecnie stosuje się również zaawansowane techniki, takie jak bronchoskopia z nawigacją elektromagnetyczną lub robotyczna, które umożliwiają dostęp do zmian położonych w obwodowych częściach płuc 25.
  • Biopsja igłowa przezskórna – procedura, w której lekarz pod kontrolą TK lub USG wprowadza igłę przez skórę do podejrzanej zmiany w płucu i pobiera próbkę tkanki 26.
  • Torakocenteza – procedura polegająca na pobraniu płynu z jamy opłucnowej (przestrzeni między płucami a ścianą klatki piersiowej). Jeśli w jamie opłucnowej gromadzi się płyn, może on być badany pod kątem obecności komórek nowotworowych 27.
  • Endoskopowa ultrasonografia oskrzeli (EBUS) – procedura łącząca bronchoskopię z ultrasonografią. Sonda ultradźwiękowa umieszczona na końcu bronchoskopu pomaga lekarzowi zlokalizować węzły chłonne lub inne struktury poza drogami oddechowymi i pobrać próbki tkanki za pomocą cienkiej igły 28.
  • Mediastinoskopia – zabieg chirurgiczny, podczas którego lekarz wykonuje małe nacięcie u podstawy szyi i wprowadza mediastinoskop (cienką, rurkowatą sondę) do śródpiersia (obszaru między płucami). Umożliwia to bezpośrednią wizualizację węzłów chłonnych śródpiersia i pobranie próbek tkanki 29.
  • Torakoskopia/wideotorakoskopia (VATS) – małoinwazyjny zabieg chirurgiczny, podczas którego chirurg wprowadza torakoskop (cienkie urządzenie z kamerą) przez małe nacięcie w klatce piersiowej, co umożliwia obejrzenie płuc i opłucnej oraz pobranie próbek tkanki 3031.

Badania molekularne i biomarkery

W ostatnich latach nastąpił znaczący postęp w diagnostyce molekularnej raka płuca, co ma istotne znaczenie dla personalizacji leczenia, szczególnie w przypadku niedrobnokomórkowego raka płuca (NDRP) 32.

Badania molekularne (zwane również biomarkerami, badaniami genomowymi lub mutacyjnymi) polegają na analizie próbki guza pobranej podczas biopsji w celu identyfikacji specyficznych zmian genetycznych lub białek w komórkach nowotworowych 33. Informacje te są kluczowe w określeniu najbardziej odpowiednich opcji leczenia dla pacjenta 34.

Najczęściej badane biomarkery w raku płuca obejmują:

  • Mutacje EGFR (receptor naskórkowego czynnika wzrostu) – obecność tych mutacji może kwalifikować pacjenta do leczenia inhibitorami kinazy tyrozynowej EGFR, takimi jak erlotynib (Tarceva) 35.
  • Rearanżacje ALK (kinaza chłoniaka anaplastycznego) – fuzja genu ALK z innymi genami, najczęściej EML4, może wskazywać na potencjalną korzyść z leczenia inhibitorami ALK, takimi jak kryzotynib (Xalkori) 3637.
  • Mutacje KRAS – występują w około 25% przypadków niedrobnokomórkowego raka płuca. Pacjenci z mutacjami KRAS mogą kwalifikować się do udziału w badaniach klinicznych specjalnie zaprojektowanych dla tej grupy 38.
  • Ekspresja PD-L1 (ligand programowanej śmierci komórki 1) – poziom ekspresji tego białka może pomóc przewidzieć, czy pacjent odniesie korzyść z immunoterapii 3940.
  • Inne biomarkery – w tym rearanżacje ROS1, mutacje BRAF V600E, MET, RET, NTRK i NRG1 41.

Obecnie istnieją zatwierdzone przez FDA terapie celowane dla guzów wykazujących nieprawidłowości w genach EGFR, ALK, ROS1, BRAF V600E, MET, RET, KRAS, HER2, NTRK i NRG1 42. Ponadto, poziomy PD-L1 są wykorzystywane do określenia, czy pacjent może odnieść korzyść z immunoterapii 4344.

Biopsja płynna (Liquid biopsy)

Biopsja płynna to nowatorska metoda diagnostyczna, która polega na analizie płynów ustrojowych, najczęściej krwi, w celu wykrycia krążącego wolnego DNA (cfDNA) i krążącego DNA nowotworowego (ctDNA) 45. Chociaż tradycyjna biopsja tkanki pozostaje złotym standardem diagnostycznym, biopsja płynna oferuje nieinwazyjną alternatywę, która może być szczególnie przydatna w określonych sytuacjach:

  • Gdy konwencjonalna biopsja jest trudna lub ryzykowna do wykonania 46.
  • Do monitorowania odpowiedzi na leczenie i wykrywania nawrotu choroby 47.
  • Do identyfikacji zmian genetycznych, które mogą wpływać na wybór leczenia 48.

Ocena stopnia zaawansowania raka płuca

Po potwierdzeniu rozpoznania raka płuca, kolejnym krokiem jest określenie stadium (stopnia zaawansowania) choroby. Stadium raka płuca opisuje jego rozmiar, zasięg i to, czy rozprzestrzenił się poza pierwotne miejsce wystąpienia 49. Ocena stadium pomaga zespołowi medycznemu zaplanować odpowiednie leczenie i przewidzieć rokowanie 50.

Dla niedrobnokomórkowego raka płuca (NDRP) stosowany jest system klasyfikacji TNM:

  • T (Tumor) – określa wielkość guza pierwotnego i jego wpływ na okoliczne tkanki.
  • N (Nodes) – ocenia zajęcie regionalnych węzłów chłonnych.
  • M (Metastasis) – określa obecność przerzutów odległych 51.

Na podstawie klasyfikacji TNM określa się stadium raka płuca, które waha się od stadium I (wczesnego, zlokalizowanego) do stadium IV (zaawansowanego, przerzutowego) 52.

Natomiast drobnokomórkowy rak płuca (DRP) tradycyjnie dzieli się na dwa stadia:

  • Choroba ograniczona – gdy rak występuje tylko w jednym płucu i ewentualnie w okolicznych węzłach chłonnych.
  • Choroba rozległa – gdy rak rozprzestrzenił się do drugiego płuca, do odleglejszych węzłów chłonnych lub do innych części ciała 53.

Badania przesiewowe w kierunku raka płuca

Badania przesiewowe w kierunku raka płuca polegają na poszukiwaniu oznak choroby przed wystąpieniem objawów 54. Jest to szczególnie ważne w przypadku raka płuca, ponieważ wczesne wykrycie znacząco zwiększa szanse na wyleczenie 55.

Obecnie jedynym zalecanym badaniem przesiewowym w kierunku raka płuca jest niskodawkowa tomografia komputerowa (LDCT) 56. Badania wykazały, że coroczne badanie przesiewowe LDCT może zmniejszyć śmiertelność z powodu raka płuca o co najmniej 20% w populacjach wysokiego ryzyka 57.

Według najnowszych zaleceń U.S. Preventive Services Task Force (USPSTF), coroczne badanie przesiewowe w kierunku raka płuca za pomocą LDCT zalecane jest dla osób, które:

  • Są w wieku 50-80 lat
  • Mają co najmniej 20-paczkoletnią historię palenia
  • Obecnie palą lub rzuciły palenie w ciągu ostatnich 15 lat 5859.

USPSTF zaleca przerwanie badań przesiewowych, gdy osoba:

  • Osiągnie wiek 81 lat
  • Nie paliła przez ostatnich 15 lat
  • Rozwinie problem zdrowotny, który znacznie ogranicza przewidywaną długość życia lub zdolność lub chęć do poddania się operacji płuca, jeśli rak zostanie wykryty 60.

Nowe kierunki w diagnostyce raka płuca

Trwają intensywne badania nad nowymi metodami diagnostycznymi, które mogłyby umożliwić wcześniejsze i dokładniejsze wykrywanie raka płuca:

  • Sztuczna inteligencja (AI) – algorytmy AI mogą analizować ogromne zbiory danych medycznych, zdjęcia TK i RTG z niezwykłą precyzją, pomagając lekarzom w identyfikacji subtelnych oznak raka 61. Badania wykazały, że gdy radiolodzy korzystali z systemów wspomaganych przez AI, ich zdolność do prawidłowej identyfikacji obrazów płuc bez istotnych zmian nowotworowych (specyficzność) wzrosła o 57% w porównaniu z sytuacją, gdy nie korzystali z takiego wspomagania 62.
  • Medycyna precyzyjna – uwzględnia interakcję genów, czynników środowiskowych, stylu życia i innych parametrów, co pozwala na opracowanie spersonalizowanych strategii diagnostycznych i terapeutycznych 63.
  • Zaawansowane techniki biopsji płynnej – badania nad udoskonaleniem metod wykrywania krążącego DNA nowotworowego i innych biomarkerów we krwi mogą prowadzić do opracowania nieinwazyjnych testów przesiewowych o wysokiej czułości 6465.
  • Innowacyjne metody obrazowania – nowe technologie, takie jak obrazowanie 3D i zaawansowane techniki nawigacyjne, mogą pomóc w dokładniejszej lokalizacji i charakterystyce zmian w płucach 66.

Wyzwania w diagnostyce raka płuca

Mimo postępów w diagnostyce, rak płuca wciąż stanowi wyzwanie diagnostyczne z kilku powodów:

  • Późne objawy – rak płuca często nie daje objawów we wczesnych stadiach, co prowadzi do późnego rozpoznania, gdy choroba jest już zaawansowana 6768.
  • Ograniczony dostęp do badań przesiewowych – mimo udowodnionej skuteczności, badania przesiewowe w kierunku raka płuca nie są powszechnie stosowane ze względu na koszty i ograniczoną dostępność 69.
  • Trudności w pozyskiwaniu materiału do badań – w niektórych przypadkach uzyskanie odpowiedniej ilości tkanki do badań molekularnych może być trudne 70.
  • Fałszywie ujemne i fałszywie dodatnie wynikibadania obrazowe i przesiewowe mogą czasami dawać wyniki fałszywie dodatnie (sugerujące raka, gdy go nie ma) lub fałszywie ujemne (niewykrywające raka, gdy jest obecny) 71.

Znaczenie wielodyscyplinarnego podejścia

Diagnostyka raka płuca wymaga kompleksowego, wielodyscyplinarnego podejścia. Pacjenci z podejrzeniem raka płuca powinni być kierowani do wielodyscyplinarnego zespołu onkologicznego, składającego się z pulmonologów, radiologów, patologów, chirurgów klatki piersiowej, onkologów klinicznych i radioterapeutów 72.

Współpraca między specjalistami z różnych dziedzin zapewnia kompleksową ocenę diagnostyczną, właściwe określenie stadium zaawansowania choroby i opracowanie optymalnego planu leczenia 73. Pacjenci powinni aktywnie uczestniczyć w procesie diagnostycznym, zadając pytania i upewniając się, że rozumieją wyniki badań oraz dostępne opcje leczenia 74.

Wczesna i dokładna diagnostyka raka płuca ma kluczowe znaczenie dla poprawy rokowania. Postęp w technikach diagnostycznych, badaniach molekularnych i badaniach przesiewowych daje nadzieję na wcześniejsze wykrywanie i lepsze wyniki leczenia tej groźnej choroby w przyszłości 75.

Kolejne rozdziały

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

  1. 13.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Lung cancer earlier diagnosis — OxCODE
    https://www.oxcode.ox.ac.uk/research-showcase/lung-cancer-earlier-diagnosis
    The University of Oxford is leading two programmes of research focused on accelerating pathways for the earlier diagnosis of lung cancer. […] Earlier diagnosis is critical: current one-year survival reaches 88% in stage 1 compared with 19% in stage 4 disease; however, only 16% of all patients are diagnosed at stage 1 (CRUK). […] Two research programmes led by the University of Oxford are aiming to improve the diagnosis of lung cancer. […] In the IDEAL study, academic clinicians from Oxford are collaborating with Oxford-based Optellum Ltd to use artificial intelligence (AI) to extract information about a lung nodule from a CT scan and predict malignancy by comparing it to data from thousands of nodules where the diagnosis is known. […] The aim is to implement the model into a clinical system that will support clinicians, deliver improvements to patient care, and save the NHS money.
  • #2 Lung cancer – Diagnosis and treatment – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/lung-cancer/diagnosis-treatment/drc-20374627
    Lung cancer diagnosis often starts with an imaging test to look at the lungs. […] If your healthcare professional thinks you may have lung cancer, a number of tests can be used to look for cancerous cells and to rule out other conditions. […] Tests may include: Imaging tests make pictures of the body. They can show the location and size of the lung cancer. […] Sputum is the mucus that is coughed up from the lungs. If you are coughing up sputum, it can be looked at under a microscope. The sputum can sometimes show lung cancer cells. […] A biopsy is a procedure to remove a sample of tissue for testing in a lab. […] Your cancer cells will be carefully tested in a lab to find out what type of lung cancer you have. The results can help determine the likely outcome of your cancer, called the prognosis, and guide your treatment.
  • #3 How Is Lung Cancer Diagnosed? | American Lung Association
    https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/how-is-lung-cancer-diagnosed
    How Is Lung Cancer Diagnosed? […] How lung cancer is diagnosed differs from person to person. Your medical team chooses tests based on several factors: […] Your doctor might order imaging tests that may help find lung cancer. Imaging tests make pictures of the inside of your body. These pictures help doctors to find lung cancer, to see if it has spread, to see if treatment is working or to find a cancer that has come back after treatment. […] To see if something suspicious is actually lung cancer, the doctor must study tissue or fluid from or around the lung. Many different procedures allow doctors to remove cells or biopsy from the body and look at them under a microscope to determine if they are cancer. […] Many researchers are working to develop tests that can make a difference in early lung cancer screening and survival. If you think you are at risk for lung cancer or if you have any symptoms, talk to your doctor about tests to see if you have lung cancer. […] Screening is looking for cancer before you have any symptoms, which can help find cancer at an early stage when it may be easier to treat.
  • #4
    https://www.nhs.uk/conditions/lung-cancer/diagnosis/
    See a GP if you have symptoms of lung cancer, such as breathlessness or a persistent cough. […] A chest X-ray is usually the 1st test used to diagnose lung cancer. Most lung tumours appear on X-rays as a white-grey mass. […] If a chest X-ray suggests you may have lung cancer, you should be referred to a specialist in chest conditions. […] A CT scan is usually the next test you’ll have after a chest X-ray. […] You may have a PET-CT scan may be done if the results of a CT scan show you have cancer. […] If a CT scan shows there might be cancer in the central part of your chest, you may be offered a bronchoscopy. […] A biopsy from a lymph node can show if cancerous cells are growing there and what type they are. […] Once tests have been completed, it should be possible for doctors to know what stage your cancer is, what this means for your treatment and whether it’s possible to completely cure the cancer.
  • #5 Lung Cancer: Diagnosis, Treatment Principles, and Screening | AAFP
    https://www.aafp.org/pubs/afp/issues/2022/0500/p487.html
    Lung cancer is the second most common cancer in men and women in the United States; however, it remains the leading cause of cancer-related death in the United States and worldwide. The most common but nonspecific symptom of lung cancer is cough. Associated symptoms, including hemoptysis or shortness of breath, or systemic symptoms, including anorexia or weight loss, greatly increase the likelihood of having lung cancer. Referral to a multidisciplinary lung cancer team, imaging, and confirmation through sputum cytology, thoracentesis, fine-needle aspiration, or mediastinoscopy are recommended. […] The initial evaluation for patients with a suspicion for lung cancer begins with laboratory testing, including a complete blood count, serum chemistries, calcium levels, and liver function tests, with chest radiography. A normal chest radiograph alone should not be used to rule out lung cancer because just under 20% to 25% of normal chest radiographs may miss the disease. Patients who have a high level of suspicion for lung cancer based on clinical assessment or initial chest radiography findings should receive computed tomography (CT) of the chest with intravenous contrast media, ideally to include the liver and adrenals.
  • #6 Lung Cancer: Diagnosis, Treatment Principles, and Screening | AAFP
    https://www.aafp.org/pubs/afp/issues/2015/0215/p250.html
    The initial evaluation of a patient with suspected lung cancer begins with a history and physical examination; complete blood count; measurement of alkaline phosphatase, hepatic transaminase, and calcium levels; chemistries (electrolytes, blood urea nitrogen, creatinine); and chest radiography. Normal findings on a chest radiograph do not rule out lung cancer because a small tumor can be hidden within the mediastinum or elsewhere in the chest. If suspicion remains high because a likely alternative diagnosis is not identified on the chest radiograph, contrast-enhanced computed tomography (CT) should be performed, followed by positron emission tomography if necessary. […] The diagnostic evaluation includes three simultaneous steps: tissue diagnosis, staging, and functional evaluation. […] Although experienced physicians can often diagnose the type of lung cancer based on clinical presentation and radiographic appearance, an adequate tissue sample is imperative to optimize the diagnosis and plan treatment. Molecular testing requires a significant amount of tissue.
  • #7
    https://www.nhs.uk/conditions/lung-cancer/diagnosis/
    See a GP if you have symptoms of lung cancer, such as breathlessness or a persistent cough. […] A chest X-ray is usually the 1st test used to diagnose lung cancer. Most lung tumours appear on X-rays as a white-grey mass. […] If a chest X-ray suggests you may have lung cancer, you should be referred to a specialist in chest conditions. […] A CT scan is usually the next test you’ll have after a chest X-ray. […] You may have a PET-CT scan may be done if the results of a CT scan show you have cancer. […] If a CT scan shows there might be cancer in the central part of your chest, you may be offered a bronchoscopy. […] A biopsy from a lymph node can show if cancerous cells are growing there and what type they are. […] Once tests have been completed, it should be possible for doctors to know what stage your cancer is, what this means for your treatment and whether it’s possible to completely cure the cancer.
  • #8 Diagnosis of lung cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/lung/diagnosis
    A complete blood count (CBC) measures the number and quality of white blood cells, red blood cells and platelets. A CBC is done to get some basic information about your overall health before any treatments start. […] An x-ray uses small doses of radiation to make an image of parts of the body on film. A chest x ray is often the first imaging test done to look for problems with the lungs. It may show spots, tumours or changes in the lungs. […] A computed tomography (CT) scan uses special x-ray equipment to make 3D and cross-sectional images of organs, tissues, bones and blood vessels inside the body. A CT scan is used to: show the location, size and shape of a lung tumour, find any lymph nodes in the chest that are larger than normal, check if the tumour has spread to other parts of the body, guide a biopsy.
  • #9 Diagnosis – GO2 for Lung Cancer
    https://go2.org/what-is-lung-cancer/diagnosis/
    A series of tests are necessary to diagnose lung cancer. Further testing then identify the type and stage of the cancer, which help determine treatment options. […] Chest x-rays have been shown ineffective to screen for lung cancer but for some, a problem in the lungs may first be identified by chest x-ray. […] If something of concern is found on an x-ray, a CT scan is typically ordered. For some, the CT scan is the first test in the diagnostic process. […] CT scans can detect extremely small tumors and can give three-dimensional imaging of the tumor. CTs can also help determine if the tumor has spread to lymph nodes surrounding the lungs. […] To determine if a problem area is indeed lung cancer, a biopsy must be performed. […] A biopsy confirms the presence of cancer. Small pieces of suspicious tissue or fluids are removed from the body and examined under a microscope by a doctor called a pathologist. The procedure not only confirms the presence of cancer but typically determines the kind of lung cancer as well.
  • #10
    https://www.nhs.uk/conditions/lung-cancer/diagnosis/
    See a GP if you have symptoms of lung cancer, such as breathlessness or a persistent cough. […] A chest X-ray is usually the 1st test used to diagnose lung cancer. Most lung tumours appear on X-rays as a white-grey mass. […] If a chest X-ray suggests you may have lung cancer, you should be referred to a specialist in chest conditions. […] A CT scan is usually the next test you’ll have after a chest X-ray. […] You may have a PET-CT scan may be done if the results of a CT scan show you have cancer. […] If a CT scan shows there might be cancer in the central part of your chest, you may be offered a bronchoscopy. […] A biopsy from a lymph node can show if cancerous cells are growing there and what type they are. […] Once tests have been completed, it should be possible for doctors to know what stage your cancer is, what this means for your treatment and whether it’s possible to completely cure the cancer.
  • #11 Diagnosis of lung cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/lung/diagnosis
    A positron emission tomography (PET) scan uses radioactive materials called radiopharmaceuticals to look for changes in the metabolic activity of body tissues. A PET scan is used to find out how far lung cancer has spread. […] During a biopsy, the doctor removes tissues or cells from the body so they can be tested in a lab. Getting enough tissue during a biopsy is important so that cell and tissue tests can be done. A report from a pathologist will show whether or not cancer cells are found in the sample. […] An endoscopy is done to remove tissue samples and to see how far lung cancer has spread. It allows a doctor to look inside the body using a flexible or rigid tube with a light and lens on the end. […] Cells and tissues are analyzed in the lab to look for cancer. A report from a pathologist will show whether or not cancer cells are found in the sample and what type of lung cancer has been found.
  • #12 Lung cancer
    https://www.cancervic.org.au/cancer-information/types-of-cancer/lung_cancer/diagnosing_lung_cancer.html
    If certain proteins are found in the biopsy sample from an NSCLC, the cancer may respond to immunotherapy. The most common protein tested for is called programmed death ligand-1 (PDL1) on the surface of the cancer cells. […] If the tests described in this chapter show that you have lung cancer, you will have further tests to see whether the cancer has spread beyond the lung to other parts of the body or the bones. […] The tests described above help show what type of lung cancer you have and how far it has spread. Called staging, this helps your doctors recommend the best treatment for you.
  • #13 Tests for lung cancer | Cancer Research UK
    https://www.cancerresearchuk.org/about-cancer/lung-cancer/getting-diagnosed/tests-for-lung-cancer
    You usually have several tests to check for lung cancer. This might include all or some of the following: a chest x-ray, CT or MRI scans, a bronchoscopy, ultrasound scans, biopsies. A chest x-ray is a test that can help to diagnose lung cancer. If you have symptoms that could be caused by lung cancer, your doctor will arrange for you to have an x-ray. Depending on the results of your tests, your GP might refer you to a specialist. They usually do all the necessary tests until you have a diagnosis. If it is lung cancer, and it cant be removed with surgery, they will refer you to a medical oncologist for lung cancer. The tests the specialists might do include: CT scan with contrast, PET-CT scan, bronchoscopy, needle biopsy through the skin, surgical biopsy, neck lymph node ultrasound and biopsy, endobronchial ultrasound (EBUS-TBNA), endoscopic ultrasound, mediastinoscopy, testing for gene mutations in lung cancer, bone scan, ultrasound, MRI. Doctors can use a CT scan to look for lung cancer. It can help them to diagnose and stage lung cancer. A PET-CT scan for lung cancer can help to show exactly where the cancer is in your lung, whether it has spread elsewhere in the body and to lymph nodes in the chest, how aggressive (metabolic active) is the cancer, decide which is the best treatment for your cancer, check whether your cancer has come back, plan radiotherapy treatment, how well a cancer treatment is working. A bronchoscopy is a test to look at the inside of the breathing tubes (airways) in your lungs. A surgical biopsy of the lung can help diagnose lung cancer. You might have this test if a CT scan has shown an abnormal area in your lung or airways. Ultrasound scans use high frequency sound waves to create a picture of a part of the body. You might have this test if your doctor has seen changes in the lymph nodes in your neck on a CT scan. This test can show if an abnormal looking area is lung cancer and the size of the tumour. An endoscopic ultrasound can check whether lung cancer has spread into the lymph nodes in the centre of the chest close to the windpipe. Doctors use this information to plan the best treatment based on the genetic type of the cancer. Some lung cancers, such as non small cell lung cancer have changes in particular genes and proteins. These changes can be used as targets for specific drug treatments. Your doctor might test for changes in one or more of these genes before you start treatment. A bone scan can show changes or abnormalities in the bones. Your specialist might ask you to have a bone scan to help work out whether your lung cancer has spread. An MRI scan can check whether lung cancer has spread to the brain.
  • #14 Diagnosis of lung cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/lung/diagnosis
    Diagnosis is the process of finding out the cause of a health problem. Diagnosing lung cancer usually begins with a visit to your family doctor. Your doctor will ask you about any symptoms you have and do a physical exam. Based on this information, your doctor may refer you to a specialist or order tests to check for lung cancer or other health problems. […] The following tests are usually used to rule out or diagnose lung cancer. Many of the same tests used to diagnose cancer are used to find out the stage (how far the cancer has spread). Your doctor may also order other tests to check your general health and to help plan your treatment. […] A physical exam allows your doctor to look for any signs of lung cancer. During a physical exam, your doctor may: listen to your lungs and heart using a stethoscope, tap your chest to listen for sounds, feel your neck and area above the collarbone to look for swelling or lymph nodes that are larger than normal, feel your abdomen to see if your liver is larger than normal, check your blood pressure and pulse, check to see if you have lost any weight.
  • #15 Diagnosis of lung cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/lung/diagnosis
    A complete blood count (CBC) measures the number and quality of white blood cells, red blood cells and platelets. A CBC is done to get some basic information about your overall health before any treatments start. […] An x-ray uses small doses of radiation to make an image of parts of the body on film. A chest x ray is often the first imaging test done to look for problems with the lungs. It may show spots, tumours or changes in the lungs. […] A computed tomography (CT) scan uses special x-ray equipment to make 3D and cross-sectional images of organs, tissues, bones and blood vessels inside the body. A CT scan is used to: show the location, size and shape of a lung tumour, find any lymph nodes in the chest that are larger than normal, check if the tumour has spread to other parts of the body, guide a biopsy.
  • #16 Diagnosis of lung cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/lung/diagnosis
    Blood chemistry tests measure certain chemicals in the blood. They show how well certain organs are working and can help find abnormalities. Blood chemistry tests are used to see if lung cancer has spread to other parts of the body. […] Mucus that is coughed up from the lungs (sputum) may be examined to see if it contains cancer cells. […] Pulmonary function tests check how well your lungs are working. They measure how much air your lungs can hold and how well you can let air out of the lungs. […] Heart function tests check how well your heart is working. These tests are important if your doctor is considering surgery as a treatment option for lung cancer.
  • #17 How to Detect Lung Cancer | Lung Cancer Tests | American Cancer Society
    https://www.cancer.org/cancer/types/lung-cancer/detection-diagnosis-staging/how-diagnosed.html
    Some lung cancers can be found by screening, but most lung cancers are found because they are causing problems. The actual diagnosis of lung cancer is made by looking at a sample of lung cells in the lab. If you have possible signs or symptoms of lung cancer, see your doctor. […] Symptoms and the results of certain tests may strongly suggest that a person has lung cancer, but the actual diagnosis is made by looking at lung cells in the lab. […] The cells can be taken from a suspicious area using a needle or surgery (needle biopsy), fluid removed from the area around the lung (thoracentesis), or lung secretions (mucus you cough up from the lungs). The choice of which test(s) to use depends on the situation. […] A sample of sputum (mucus you cough up from the lungs) is looked at in the lab to see if it has cancer cells.
  • #18 Lung cancer – Diagnosis and treatment – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/lung-cancer/diagnosis-treatment/drc-20374627
    Lung cancer diagnosis often starts with an imaging test to look at the lungs. […] If your healthcare professional thinks you may have lung cancer, a number of tests can be used to look for cancerous cells and to rule out other conditions. […] Tests may include: Imaging tests make pictures of the body. They can show the location and size of the lung cancer. […] Sputum is the mucus that is coughed up from the lungs. If you are coughing up sputum, it can be looked at under a microscope. The sputum can sometimes show lung cancer cells. […] A biopsy is a procedure to remove a sample of tissue for testing in a lab. […] Your cancer cells will be carefully tested in a lab to find out what type of lung cancer you have. The results can help determine the likely outcome of your cancer, called the prognosis, and guide your treatment.
  • #19 How Is Lung Cancer Diagnosed? Tests, Scans & Procedure
    https://www.webmd.com/lung-cancer/lung-cancer-diagnosis
    If you are wondering how lung cancer is detected, your doctor has many options for getting a diagnosis. Lung cancer tests include imaging scans, tests of mucus from your lungs, and a biopsy. These tests help your doctor confirm a lung cancer diagnosis or find out whether another condition is causing your symptoms. […] Diagnosing lung cancer usually starts with a biopsy and imaging tests. […] A blood test called a liquid biopsy can’t confirm a lung cancer diagnosis, but it can give your doctor important information about your cancer. […] A liquid biopsy looks for DNA mutations such as EGFR, ALK, and KRAS in cancer cells circulating in your blood. Certain treatments target those mutations. […] Another tool in lung cancer diagnosis, this test checks for cancer cells in a sample of sputum mucus that you cough up from your lungs. A positive test can confirm a lung cancer diagnosis.
  • #20 How Is Lung Cancer Diagnosed? Tests, Scans & Procedure
    https://www.webmd.com/lung-cancer/lung-cancer-diagnosis
    However, a negative result does not rule out cancer. […] Once lung cancer begins to cause symptoms, it is usually visible on an X-ray. […] Your doctor might order a CT scan of your chest for a more detailed exam. […] Doctors usually confirm the diagnosis of lung cancer with a lung biopsy. In this procedure, the doctor removes cells or tissue from your lung to examine under a microscope for cancer. […] Lung cancer can spread to other parts of the body, such as the bones, liver, adrenal glands, or brain. If the biopsy confirms lung cancer, your doctor will use other tests to identify the type of cancer and where it’s spread. […] People who are at low risk for lung cancer don’t need regular screenings, but those at high risk due to their smoking history should get regular tests. […] The U.S. Preventive Services Task Force (USPSTF) recommends yearly low-dose CT screening for smokers and former smokers aged 50 to 80 who have smoked for 20 pack years or more and either continue to smoke or have quit within the past 15 years. […] Doctors use a combination of imaging tests, blood tests, and biopsy results to diagnose lung cancer.
  • #21 Lung cancer – Diagnosis and treatment – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/lung-cancer/diagnosis-treatment/drc-20374627
    Lung cancer diagnosis often starts with an imaging test to look at the lungs. […] If your healthcare professional thinks you may have lung cancer, a number of tests can be used to look for cancerous cells and to rule out other conditions. […] Tests may include: Imaging tests make pictures of the body. They can show the location and size of the lung cancer. […] Sputum is the mucus that is coughed up from the lungs. If you are coughing up sputum, it can be looked at under a microscope. The sputum can sometimes show lung cancer cells. […] A biopsy is a procedure to remove a sample of tissue for testing in a lab. […] Your cancer cells will be carefully tested in a lab to find out what type of lung cancer you have. The results can help determine the likely outcome of your cancer, called the prognosis, and guide your treatment.
  • #22 Lung Cancer: Types, Stages, Symptoms, Diagnosis & Treatment
    https://my.clevelandclinic.org/health/diseases/4375-lung-cancer
    Lung cancer is the third most common cancer in the U.S. […] Screening is recommended if you’re at high risk. […] Lung cancer is a disease caused by uncontrolled cell division in your lungs. […] Diagnosing lung cancer can be a multi-step process. […] If your provider suspects you could have lung cancer, your next steps in diagnosis would usually involve more imaging tests, like a CT scan, and then a biopsy. […] Tests your healthcare provider might order or perform include blood tests, imaging, and biopsies of fluid or tissue. […] X-rays can’t diagnose lung cancer they can only show your provider if there’s something suspicious that they should look into further. […] Diagnosing lung cancer can be a multi-step process. […] Treatments for lung cancer are designed to get rid of cancer in your body or slow down its growth.
  • #23 Diagnosis – GO2 for Lung Cancer
    https://go2.org/what-is-lung-cancer/diagnosis/
    A series of tests are necessary to diagnose lung cancer. Further testing then identify the type and stage of the cancer, which help determine treatment options. […] Chest x-rays have been shown ineffective to screen for lung cancer but for some, a problem in the lungs may first be identified by chest x-ray. […] If something of concern is found on an x-ray, a CT scan is typically ordered. For some, the CT scan is the first test in the diagnostic process. […] CT scans can detect extremely small tumors and can give three-dimensional imaging of the tumor. CTs can also help determine if the tumor has spread to lymph nodes surrounding the lungs. […] To determine if a problem area is indeed lung cancer, a biopsy must be performed. […] A biopsy confirms the presence of cancer. Small pieces of suspicious tissue or fluids are removed from the body and examined under a microscope by a doctor called a pathologist. The procedure not only confirms the presence of cancer but typically determines the kind of lung cancer as well.
  • #24
    https://www.nhs.uk/conditions/lung-cancer/diagnosis/
    See a GP if you have symptoms of lung cancer, such as breathlessness or a persistent cough. […] A chest X-ray is usually the 1st test used to diagnose lung cancer. Most lung tumours appear on X-rays as a white-grey mass. […] If a chest X-ray suggests you may have lung cancer, you should be referred to a specialist in chest conditions. […] A CT scan is usually the next test you’ll have after a chest X-ray. […] You may have a PET-CT scan may be done if the results of a CT scan show you have cancer. […] If a CT scan shows there might be cancer in the central part of your chest, you may be offered a bronchoscopy. […] A biopsy from a lymph node can show if cancerous cells are growing there and what type they are. […] Once tests have been completed, it should be possible for doctors to know what stage your cancer is, what this means for your treatment and whether it’s possible to completely cure the cancer.
  • #25 Lung Cancer Diagnosis
    https://www.froedtert.com/lung-cancer/diagnostics
    Each diagnostic approach has its advantages and disadvantages, and all are based on evidence and research. We review each option thoroughly to help patients make the best choice for them. The tests and exams used for ruling out or diagnosing lung cancer include: […] A thorough physical exam and work up, including a complete medical history, is a key part of the diagnostic process. […] A chest X-ray for another reason is often the reason a suspicious spot has been identified. X-ray is valuable in identifying masses that need further testing. […] A CT scan can be used to identify abnormalities and to monitor changes or growth in a suspicious spot. […] This procedure uses a flexible bronchoscope, which is passed through the nose or the mouth, to see inside the lungs. […] Super Dimension BronchoscopyAlso known as electromagnetic navigation bronchoscopy, this minimally invasive procedure allows the surgeon to biopsy lesions or masses from inside the lung rather than outside.
  • #26 Lung Cancer Detection & Diagnosis | Rocky Mountain Cancer Centers
    https://www.rockymountaincancercenters.com/lung-cancer/detection-diagnosis
    First, a CT scan, ultrasound, or other imaging procedure is used to locate the abnormal tissue or fluid in the lung, and then a small incision may be made in the skin where the biopsy needle is inserted into the abnormal tissue or fluid. […] This test uses a needle to remove fluid from the space between the lining of the chest and the lung. […] In this test, a microscope is used to check for cancer cells in the sputum (mucus coughed up from the lungs). […] Genetic testing is performed on the tissue removed during the biopsy or surgery to determine if there are any genetic mutations that can be treated with targeted therapy. […] PD-L1 testing on tumor cells is also performed to determine whether there is too much of this protein present. […] This is also referred to as staging and may be requested during your first appointment with the oncologist who will treat the cancer.
  • #27 Lung Cancer Diagnosis and How to Test
    https://www.cancercenter.com/cancer-types/lung-cancer/diagnosis-and-detection
    If the patient has fluid building up around his or her lungs, the care team may wish to study it to determine whether the patient has cancer of the lining of the lungs, between the lung and chest wall. […] During a lung biopsy procedure, the doctor removes a small piece of tissue or fluid from the chest so it can be checked for cancer cells. […] The care team may order a thoracoscopy to determine whether the lung cancer has invaded the space between the lungs and chest wall or the lining of these spaces. […] After a patient is diagnosed with lung cancer, it’s important for the treatment team to know whether it’s solely in the lungs or it’s spread to the lymph nodes or other organs. […] Currently, no blood test can detect lung cancer. However, blood tests may be used to help determine the patient’s overall health and whether he or she is able to undergo surgery if that is part of the treatment plan. […] Advanced genomic testing examines a tumor on a genetic level to look for the DNA alterations that are driving the cancer’s growth.
  • #28 Lung Cancer Diagnosis
    https://www.froedtert.com/lung-cancer/diagnostics
    This test uses CT imaging to guide a needle through the skin into the lung to remove cells or tissue from the suspected mass or lymph nodes for biopsy. […] This minimally invasive surgical approach uses a scope inserted between the ribs to examine the lung. […] EBUS uses an ultrasound probe at the end of a bronchoscope to help doctors see the mass they are biopsying to improve accuracy. […] This technique uses an ultrasound probe at the end of an endoscope, which is passed down the throat into the esophagus.
  • #29
    https://www2.hse.ie/conditions/lung-cancer/tests-and-diagnosis/
    Send the samples to the lab where they will be checked for cancer cells. […] A sample from a lymph node can show if cancerous cells are growing there and what type they are. […] Doctors use a thoracoscopy to check how the lining of your lungs look and take samples. […] Send the samples to a laboratory for testing to check them for cancer cells. […] A mediastinoscopy is a test to: examine the area between your lungs at the centre of your chest (mediastinum), take samples of cells from your lymph nodes that they send to a lab for testing. […] A percutaneous needle biopsy is a way to take a sample from your lungs using a needle. […] Send the samples to a lab for testing to check them for cancer cells. […] Your treatment team will explain all the risks in detail before you agree to have a biopsy. […] You test results will show the stage of your cancer. This will help your doctors decide on the best treatment for you. […] Doctors use a staging system for lung cancer called TNM. […] Your team will explain what the stage of your cancer is, and what this means.
  • #30 Diagnosis and Staging of Lung Cancer | Caring Ambassadors
    https://caringambassadors.org/lung-cancer-choices/diagnosis-and-staging-of-lung-cancer/
    With lung cancer screening detected lung nodules, PET-CT has a role in selected patients to aid in the risk stratification of indeterminate lung nodules measuring greater than 10 mm in diameter or with evidence of growth if the lesion is less than 10 mm. […] EBUS-FNA is a minimally invasive technique that complements mediastinoscopy by its ability to access lymph node stations 2, 3, 4, 7, 10, and 11. […] Subsequent studies have demonstrated that EBUS-FNA is a minimally invasive, highly accurate alternative as well as a complementary procedure to mediastinoscopy for mediastinal and hilar staging for patients with known or suspected NSCLC. […] Studies evaluating EUS-FNA for lung cancer, excluding one, have demonstrated sensitivities and specificities for malignancy of 87% 96% and 100%, respectively which is comparable to EBUS-FNA. Overall, these studies demonstrate that EUS is a valuable diagnostic and staging tool for patients with suspected or known NSCLC.
  • #31 Diagnosis and Staging of Lung Cancer | Caring Ambassadors
    https://caringambassadors.org/lung-cancer-choices/diagnosis-and-staging-of-lung-cancer/
    Patients with pleural effusions that layer at least 1 cm on lateral decubitus chest radiographs are easily assessed for malignancy by thoracentesis. […] Pleural fluid analysis will obtain a diagnosis of metastatic adenocarcinoma in 70% of cases but only 20% of squamous cell carcinomas will be detected this way. […] In summary, medical thoracoscopy is a diagnostic option for pleural effusions that remain undiagnosed despite thoracentesis as well as a therapeutic approach for pleurodesis in refractory pleural effusions. […] VATS or thoracoscopy is a surgical method that permits the surgeon to evaluate the pleural space and ipsilateral lymph nodes and to resect lung cancer. […] Patients with suspected or known NSCLC who are found to have extra-thoracic disease on PET-CT imaging should undergo tissue biopsy to confirm a metastatic focus.
  • #32 Lung Cancer Biomarker Testing | American Lung Association
    https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/biomarker-testing
    Lung cancer biomarker testing sometimes referred to as tumor, molecular, or genomic testing looks for changes in the tumor’s DNA. […] Biomarker testing looks for mutations, additions, deletions, or rearrangements in DNA. […] Knowing this information can help influence treatment options. […] Not all lung cancers are the same. When scientists look at tissue from a person’s lung cancer tumor under a microscope they can tell what type (non-small cell, small cell or carcinoid) and subtype the lung cancer is. […] It involves testing tumor tissue for abnormalities in its DNA and levels of specific proteins in the tumor. These tests are sometimes called biomarker, molecular, or genomic testing. If doctors know exactly what causes the tumor to grow, a patient may be able to go on a „targeted” therapy that can slow tumor growth or shrink the tumor. Testing can also show levels of an important protein called PD-L1 which may help predict if a patient would benefit from immunotherapy.
  • #33 What is involved in diagnosing lung cancer? | LCFA
    https://lcfamerica.org/about-lung-cancer/diagnosis/
    Receiving a lung cancer diagnosis can be overwhelming. However, early detection and accurate diagnosis are crucial in improving treatment outcomes and increasing survival rates. The process of diagnosing lung cancer includes the various tests and procedures involved. […] Imaging tests play a crucial role in diagnosing lung cancer. They provide detailed images of the lungs and surrounding structures, helping doctors identify any abnormalities. The most common imaging tests used for lung cancer diagnosis include: […] A biopsy is the definitive method for confirming a lung cancer diagnosis. It involves the removal of a small tissue sample from the suspicious area for examination under a microscope. […] Biomarker testing, also known as genomic testing or molecular testing, is performed on the tissue sample obtained during the biopsy. It helps identify specific genomic mutations or alterations in the cancer cells. This information is crucial in determining the most appropriate treatment options for the patient.
  • #34 Lung Cancer Biomarker Testing | American Lung Association
    https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/biomarker-testing
    Lung cancer biomarker testing sometimes referred to as tumor, molecular, or genomic testing looks for changes in the tumor’s DNA. […] Biomarker testing looks for mutations, additions, deletions, or rearrangements in DNA. […] Knowing this information can help influence treatment options. […] Not all lung cancers are the same. When scientists look at tissue from a person’s lung cancer tumor under a microscope they can tell what type (non-small cell, small cell or carcinoid) and subtype the lung cancer is. […] It involves testing tumor tissue for abnormalities in its DNA and levels of specific proteins in the tumor. These tests are sometimes called biomarker, molecular, or genomic testing. If doctors know exactly what causes the tumor to grow, a patient may be able to go on a „targeted” therapy that can slow tumor growth or shrink the tumor. Testing can also show levels of an important protein called PD-L1 which may help predict if a patient would benefit from immunotherapy.
  • #35 Lung Cancer Genomic Testing (EGFR, KRAS, ALK) | Memorial Sloan Kettering Cancer Center
    https://www.mskcc.org/cancer-care/types/lung/diagnosis/genetic-testing
    The most common genetic changes that we test for in lung cancer are in the genes EGFR, KRAS, and ALK. […] Patients with cancer that has an EGFR mutation generally respond positively to treatment with the drug erlotinib (Tarceva). If your tumor has an EGFR mutation, your doctor may recommend treatment with this drug or participation in a clinical trial. […] Another mutation we regularly test for is in a gene called KRAS. KRAS is mutated in about 25 percent of patients with non-small cell lung cancer. If your tumor has a mutation in KRAS, your doctor may recommend a clinical trial specifically designed for patients with KRAS mutations. […] Patients whose tumors do not have mutations in either EGFR or KRAS may have another abnormality involving the ALK gene. This abnormality happens when ALK fuses to other genes, most commonly EML4. The result is a mutant gene called EML4-ALK, which changes the way the two fused genes function.
  • #36 Lung Cancer Genomic Testing (EGFR, KRAS, ALK) | Memorial Sloan Kettering Cancer Center
    https://www.mskcc.org/cancer-care/types/lung/diagnosis/genetic-testing
    The most common genetic changes that we test for in lung cancer are in the genes EGFR, KRAS, and ALK. […] Patients with cancer that has an EGFR mutation generally respond positively to treatment with the drug erlotinib (Tarceva). If your tumor has an EGFR mutation, your doctor may recommend treatment with this drug or participation in a clinical trial. […] Another mutation we regularly test for is in a gene called KRAS. KRAS is mutated in about 25 percent of patients with non-small cell lung cancer. If your tumor has a mutation in KRAS, your doctor may recommend a clinical trial specifically designed for patients with KRAS mutations. […] Patients whose tumors do not have mutations in either EGFR or KRAS may have another abnormality involving the ALK gene. This abnormality happens when ALK fuses to other genes, most commonly EML4. The result is a mutant gene called EML4-ALK, which changes the way the two fused genes function.
  • #37 Lung Cancer Genomic Testing (EGFR, KRAS, ALK) | Memorial Sloan Kettering Cancer Center
    https://www.mskcc.org/cancer-care/types/lung/diagnosis/genetic-testing
    If you’ve tested positive for EML4-ALK, you may benefit from the drug crizotinib (Xalkori). Your doctor may also suggest you join a clinical trial of a new drug that targets this abnormality. […] More than 50 percent of patients with squamous cell cancer may have changes in proteins and molecular pathways. […] We are looking for new personalized therapies for these mutations and may have a clinical trial you can join. […] Less is known about the mutations that cause small cell lung cancer. We are actively looking for mutations that can be used to guide treatment for small cell lung cancer patients.
  • #38 Lung Cancer Genomic Testing (EGFR, KRAS, ALK) | Memorial Sloan Kettering Cancer Center
    https://www.mskcc.org/cancer-care/types/lung/diagnosis/genetic-testing
    The most common genetic changes that we test for in lung cancer are in the genes EGFR, KRAS, and ALK. […] Patients with cancer that has an EGFR mutation generally respond positively to treatment with the drug erlotinib (Tarceva). If your tumor has an EGFR mutation, your doctor may recommend treatment with this drug or participation in a clinical trial. […] Another mutation we regularly test for is in a gene called KRAS. KRAS is mutated in about 25 percent of patients with non-small cell lung cancer. If your tumor has a mutation in KRAS, your doctor may recommend a clinical trial specifically designed for patients with KRAS mutations. […] Patients whose tumors do not have mutations in either EGFR or KRAS may have another abnormality involving the ALK gene. This abnormality happens when ALK fuses to other genes, most commonly EML4. The result is a mutant gene called EML4-ALK, which changes the way the two fused genes function.
  • #39 How to Detect Lung Cancer | Lung Cancer Tests | American Cancer Society
    https://www.cancer.org/cancer/types/lung-cancer/detection-diagnosis-staging/how-diagnosed.html
    Patients diagnosed with non-small cell lung carcinoma (NSCLC) will have the lung tumor cells tested for PD-L1. PD-L1 is a protein (program death ligand 1) on cancer cells. A score is calculated depending on if and how much PD-L1 protein the tumor is making. This score will guide decisions about whether the patient would benefit from certain immunotherapy drugs.
  • #40 Lung cancer
    https://www.cancervic.org.au/cancer-information/types-of-cancer/lung_cancer/diagnosing_lung_cancer.html
    If certain proteins are found in the biopsy sample from an NSCLC, the cancer may respond to immunotherapy. The most common protein tested for is called programmed death ligand-1 (PDL1) on the surface of the cancer cells. […] If the tests described in this chapter show that you have lung cancer, you will have further tests to see whether the cancer has spread beyond the lung to other parts of the body or the bones. […] The tests described above help show what type of lung cancer you have and how far it has spread. Called staging, this helps your doctors recommend the best treatment for you.
  • #41 Lung Cancer Biomarker Testing | American Lung Association
    https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/biomarker-testing
    The best time to talk to your doctor about tumor testing is before a biopsy is done. […] If you have non-small cell lung cancer, it is important to discuss comprehensive biomarker testing. […] Results from biomarker testing show if there are certain abnormalities in the DNA of the tumor and levels of specific proteins present in the tumor. […] The results of the test may show biomarkers that can help determine what treatment options would be best for you. […] There are currently FDA-approved lung cancer treatments for tumors showing abnormalities in EGFR, ALK, ROS1, BRAFV600E, MET, RET, KRAS, HER2 and NTRK and NRG1 genes. […] PD-L1 levels are also used to help inform whether or not a patient may benefit from immunotherapy. […] Not everyone with lung cancer will have biomarkers that can be treated with targeted therapies.
  • #42 Lung Cancer Biomarker Testing | American Lung Association
    https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/biomarker-testing
    The best time to talk to your doctor about tumor testing is before a biopsy is done. […] If you have non-small cell lung cancer, it is important to discuss comprehensive biomarker testing. […] Results from biomarker testing show if there are certain abnormalities in the DNA of the tumor and levels of specific proteins present in the tumor. […] The results of the test may show biomarkers that can help determine what treatment options would be best for you. […] There are currently FDA-approved lung cancer treatments for tumors showing abnormalities in EGFR, ALK, ROS1, BRAFV600E, MET, RET, KRAS, HER2 and NTRK and NRG1 genes. […] PD-L1 levels are also used to help inform whether or not a patient may benefit from immunotherapy. […] Not everyone with lung cancer will have biomarkers that can be treated with targeted therapies.
  • #43 Lung Cancer Biomarker Testing | American Lung Association
    https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/biomarker-testing
    The best time to talk to your doctor about tumor testing is before a biopsy is done. […] If you have non-small cell lung cancer, it is important to discuss comprehensive biomarker testing. […] Results from biomarker testing show if there are certain abnormalities in the DNA of the tumor and levels of specific proteins present in the tumor. […] The results of the test may show biomarkers that can help determine what treatment options would be best for you. […] There are currently FDA-approved lung cancer treatments for tumors showing abnormalities in EGFR, ALK, ROS1, BRAFV600E, MET, RET, KRAS, HER2 and NTRK and NRG1 genes. […] PD-L1 levels are also used to help inform whether or not a patient may benefit from immunotherapy. […] Not everyone with lung cancer will have biomarkers that can be treated with targeted therapies.
  • #44 Lung Cancer Biomarker Testing | American Lung Association
    https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/biomarker-testing
    All patients should have their PD-L1 levels tested to determine if they may be candidates for immunotherapy. […] Talk to your doctor about receiving the most comprehensive biomarker testing possible. The more information you have about the makeup of your tumor, the better informed you and your doctor will be to make treatment decisions.
  • #45 Lung Cancer Diagnosis Tests: Traditional, Modern, and Future Approaches
    https://www.cioncancerclinics.com/blog/article/evolution-of-lung-cancer-diagnosis-from-traditional-techniques-to-future-innovations
    Building on the foundation of traditional biopsy, modern minimally invasive techniques like needle biopsy, bronchoscopy, and mediastinoscopy aim to procure tissue samples for thorough microscopic examination and accurate diagnosis. […] Liquid biopsy is a technique that involves the analysis of biological fluids like blood or saliva, for circulating free DNA (cfDNA) and circulating tumor DNA (ctDNA) to detect cancer. This non-invasive method holds the promise of enhanced sensitivity and early detection. […] AI algorithms emerge as invaluable allies in the realm of lung cancer diagnosis. Analyzing vast medical datasets, CT scans, and X-rays with meticulous precision, Artificial Intelligence (AI) aids physicians in identifying nuanced signs of cancer. Moreover, it facilitates the personalized treatment plans, ensuring tailored interventions for individual patients.
  • #46 Tests to Confirm Diagnosis for Lung Cancer | Cancer Council NSW
    https://www.cancercouncil.com.au/lung-cancer/diagnosis/tests/tests-to-confirm-diagnosis/
    If a tumour is suspected after a chest x-ray or CT scan, you will need further tests to work out if it is lung cancer. […] The most common way to confirm a lung cancer diagnosis is by biopsy. This is when small sample of tissue is taken from the lung, lymph nodes, or both. The tissue sample is sent to a laboratory, where a specialist doctor called a pathologist looks at the sample under a microscope. […] A new test known as liquid biopsy involves taking a blood sample and examining it for cancer. Liquid biopsy is still being studied to see how accurate it is, and it is not yet a routine way to diagnose lung cancer. It could help when a tissue biopsy is not safe to perform. […] Biopsy samples may be tested for gene changes or specific proteins in the cancer cells (biomarkers). These tests are known as molecular tests and they help work out which immunotherapy and targeted therapy drugs may help treat the cancer. […] If the tests described in this chapter show that you have lung cancer, you will have further tests to see whether the cancer has spread beyond the lung to other parts of the body or the bones.
  • #47 Current and Future Development in Lung Cancer Diagnosis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC8395394/
    The introduction of testing for biomarkers made the most use of lung tissue biopsies by testing for mutations. […] The most common targetable mutation in the gene EGFR, for which testing has been part of the standard practice since 2011, is not continuously assessed. […] Tests may fail due to technical reasons. Proper diagnosis needs the collaboration of a multi-disciplinary system working with pulmonology or interventional radiology to ensure enough tissue is obtained at diagnosis for testing. […] Liquid biopsies allow for the non-invasive analysis of body fluids for DNA-shed products and aberrant circulating cells. […] The ability to use these non-invasive methods of analyzing liquid biopsies, such as plasma, saliva, pleural effusions, CSF, or urine at the clinic, is considered technological progress in immune-oncology.
  • #48 How Is Lung Cancer Diagnosed? Tests, Scans & Procedure
    https://www.webmd.com/lung-cancer/lung-cancer-diagnosis
    If you are wondering how lung cancer is detected, your doctor has many options for getting a diagnosis. Lung cancer tests include imaging scans, tests of mucus from your lungs, and a biopsy. These tests help your doctor confirm a lung cancer diagnosis or find out whether another condition is causing your symptoms. […] Diagnosing lung cancer usually starts with a biopsy and imaging tests. […] A blood test called a liquid biopsy can’t confirm a lung cancer diagnosis, but it can give your doctor important information about your cancer. […] A liquid biopsy looks for DNA mutations such as EGFR, ALK, and KRAS in cancer cells circulating in your blood. Certain treatments target those mutations. […] Another tool in lung cancer diagnosis, this test checks for cancer cells in a sample of sputum mucus that you cough up from your lungs. A positive test can confirm a lung cancer diagnosis.
  • #49 Lung cancer – Diagnosis and treatment – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/lung-cancer/diagnosis-treatment/drc-20374627
    If you’re diagnosed with lung cancer, you may have other tests to see if the cancer has spread. These tests help your healthcare team find out the extent of your cancer, also called the stage. […] Cancer staging tests often involve imaging tests. The tests might look for signs of cancer in your lymph nodes or in other parts of your body. Your healthcare team uses the cancer staging test results to help create your treatment plan.
  • #50
    https://www.nhs.uk/conditions/lung-cancer/diagnosis/
    See a GP if you have symptoms of lung cancer, such as breathlessness or a persistent cough. […] A chest X-ray is usually the 1st test used to diagnose lung cancer. Most lung tumours appear on X-rays as a white-grey mass. […] If a chest X-ray suggests you may have lung cancer, you should be referred to a specialist in chest conditions. […] A CT scan is usually the next test you’ll have after a chest X-ray. […] You may have a PET-CT scan may be done if the results of a CT scan show you have cancer. […] If a CT scan shows there might be cancer in the central part of your chest, you may be offered a bronchoscopy. […] A biopsy from a lymph node can show if cancerous cells are growing there and what type they are. […] Once tests have been completed, it should be possible for doctors to know what stage your cancer is, what this means for your treatment and whether it’s possible to completely cure the cancer.
  • #51 Diagnosis and Staging of Lung Cancer | Caring Ambassadors
    https://caringambassadors.org/lung-cancer-choices/diagnosis-and-staging-of-lung-cancer/
    This chapter will review the current system for staging non-small cell lung cancer (NSCLC), the different diagnostic and staging options, and a brief discussion about the importance of mutation analyses in guiding treatment for patients with advanced stage disease. […] The 8th Edition of the American Joint Commission on Cancer TMN staging system for NSCLC which became the worldwide standard in 2017 continues with the existing method of assessing tumor size and its effect on the surrounding lung tissue or its interaction with non-lung tissue (T), the extent of spread of lung cancer to lymph nodes (N) and the presence or absence of metastatic spread of lung cancer outside of lung tissue or to the contralateral lung (M). […] The TNM classification system is then used to derive a stage of NSCLC which ranges from localized disease (IA) to wide-spread disease (IV) providing information on expected prognosis and survival.
  • #52 How We Diagnose Non-Small Cell Lung Cancer | Dana-Farber Cancer Institute
    https://www.dana-farber.org/cancer-care/types/non-small-cell-lung-cancer/diagnosis
    In the case of non-small cell lung cancer, pathologists specializing in thoracic conditions conduct multiple tests on your tissue sample to determine not only the type and stage of the cancer, but also the genetic signature of the tumor. […] Diagnosis begins with determining whether a node or lump is cancer. Your clinicians will work with the thoracic pathologist to establish the type of cancer, its stage, and its genetic signature. […] At Dana-Farber Brigham Cancer Center, expert pathologists who specialize in analysis of lung tissues work with medical oncologists to determine whether individual patients can benefit from new and targeted therapies based on the genetic mutations in the tumor. […] When a clinician „stages” cancer, he or she is determining its size, its extent, and to what degree it has spread (metastasized) outside its initial location. Cancer stages range from stage 1 (very early and often curable with a single type of treatment) to stage 4 (advanced, metastasized, and more complex to treat).
  • #53
    https://www.nhs.uk/conditions/lung-cancer/diagnosis/
    Clinicians use a staging system for lung cancer called TNM. […] Small-cell lung cancer only has 2 possible stages: limited disease where the cancer is only in 1 lung and may be in nearby lymph nodes, extensive disease where the cancer has spread to the other lung, to lymph nodes that are further away, or to other parts of your body.
  • #54 Screening & Early Detection | LUNGevity Foundation
    https://www.lungevity.org/lung-cancer-basics/screening-early-detection
    Finding lung cancer early, when it is easiest to treat, can save lives. […] Early detection of lung cancer is defined as strategies that can detect lung cancer at a stage the extent of cancer in the body where surgery or stereotactic body radiation therapy (SBRT) can be offered with the goal of a cure. […] However, currently, only 21% of lung cancers are diagnosed while the tumor is still localized that is, only found at the site where it started. […] Lung cancer can be detected early via screening. […] Screening for lung cancer means checking for cancer before there are any symptoms. […] For lung cancer, early-detection screening by a low-dose computed tomography (LDCT) scan has proven to be effective among individuals considered to be at high risk. […] CT scans are much more sensitive than chest X-rays and can detect smaller abnormalities that may be lung cancer.
  • #55 Screening & Early Detection | LUNGevity Foundation
    https://www.lungevity.org/lung-cancer-basics/screening-early-detection
    Finding lung cancer early, when it is easiest to treat, can save lives. […] Early detection of lung cancer is defined as strategies that can detect lung cancer at a stage the extent of cancer in the body where surgery or stereotactic body radiation therapy (SBRT) can be offered with the goal of a cure. […] However, currently, only 21% of lung cancers are diagnosed while the tumor is still localized that is, only found at the site where it started. […] Lung cancer can be detected early via screening. […] Screening for lung cancer means checking for cancer before there are any symptoms. […] For lung cancer, early-detection screening by a low-dose computed tomography (LDCT) scan has proven to be effective among individuals considered to be at high risk. […] CT scans are much more sensitive than chest X-rays and can detect smaller abnormalities that may be lung cancer.
  • #56 Screening for Lung Cancer | Lung Cancer | CDC
    https://www.cdc.gov/lung-cancer/screening/index.html
    The only recommended screening test for lung cancer is low-dose computed tomography (also called a low-dose CT scan, or LDCT). […] Lung cancer screening is recommended only for adults who are at high risk for developing the disease because of their smoking history and age. […] The US Preventive Services Task Force (Task Force) recommends yearly lung cancer screening with LDCT for people who: Have a 20 pack-year or more smoking history, and Smoke now or have quit within the past 15 years, and Are between 50 and 80 years old. […] Lung cancer screening has at least three risks: A lung cancer screening test can suggest that a person has lung cancer when no cancer is present. This is called a false-positive result. […] A lung cancer screening test can find cases of cancer that may never have caused a problem for the patient. This is called overdiagnosis.
  • #57 Lung Cancer Screening and Diagnosis | Mount Sinai – New York
    https://www.mountsinai.org/care/cancer/services/lung/what-is/screening-diagnosis
    Lung cancer screening is extremely important since lung cancer might not have symptoms in its early stages. Screening can help us find any abnormalities that suggest early lung cancer. The earlier the stage of disease the treatment starts, the better the chance of a cure. Research shows the most effective lung cancer screening uses low-dose computed tomography (CT) scans. This approach can also help doctors find other conditions such as heart disease. Studies have demonstrated that lung cancer screening with low-dose CT can reduce the mortality of lung cancer by 20-25 percent when done in defined high-risk populations (over the age of 50 years and a tobacco history of at least 20 pack-years). […] Physicians with our Lung Cancer Screening Program use imaging tests to help diagnose and track lung cancer. They create pictures of the inside of your body. The most common types of imaging tests we use are: […] If we find any abnormalities, your doctor will order further diagnostic tests, such as fine-needle aspiration, bronchoscopy, endobronchial ultrasound, and molecular testing.
  • #58 Recommendation: Lung Cancer: Screening | United States Preventive Services Taskforce
    https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/lung-cancer-screening
    Recommendations made by the USPSTF are independent of the U.S. government. They should not be construed as an official position of the Agency for Healthcare Research and Quality or the U.S. Department of Health and Human Services. […] The USPSTF recommends annual screening for lung cancer with low-dose computed tomography (LDCT) in adults aged 50 to 80 years who have a 20 pack-year smoking history and currently smoke or have quit within the past 15 years. Screening should be discontinued once a person has not smoked for 15 years or develops a health problem that substantially limits life expectancy or the ability or willingness to have curative lung surgery. […] The USPSTF considers adults aged 50 to 80 years who have a 20 pack-year smoking history and currently smoke or have quit within the past 15 years to be at high risk and recommends screening for lung cancer with annual LDCT in this population.
  • #59 Recommendation: Lung Cancer: Screening | United States Preventive Services Taskforce
    https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/lung-cancer-screening
    Low-dose computed tomography has high sensitivity and reasonable specificity for the detection of lung cancer, with demonstrated benefit in screening persons at high risk. […] The USPSTF recommends annual screening for lung cancer with LDCT in adults aged 50 to 80 years who have at least a 20 pack-year smoking history. Screening should be discontinued once a person has not smoked for 15 years. […] The USPSTF recommends that screening should be discontinued once a person has not smoked for 15 years or develops a health problem that substantially limits life expectancy or the ability or willingness to have curative lung surgery. […] The USPSTF concludes with moderate certainty that annual screening for lung cancer with LDCT has a moderate net benefit in persons at high risk of lung cancer based on age, total cumulative exposure to tobacco smoke, and years since quitting smoking.
  • #60 Screening for Lung Cancer | Lung Cancer | CDC
    https://www.cdc.gov/lung-cancer/screening/index.html
    That is why lung cancer screening is recommended only for adults who are at high risk for developing the disease because of their smoking history and age, and who do not have a health problem that substantially limits their life expectancy or their ability or willingness to have lung surgery, if needed. […] If you are thinking about getting screened, talk to your doctor. […] The Task Force recommends that yearly lung cancer screening stop when the person being screened: Turns 81 years old, or Has not smoked in 15 or more years, or Develops a health problem that makes him or her unwilling or unable to have surgery if lung cancer is found. […] Most insurance plans and Medicare help pay for recommended lung cancer screening tests.
  • #61 Lung Cancer Diagnosis Tests: Traditional, Modern, and Future Approaches
    https://www.cioncancerclinics.com/blog/article/evolution-of-lung-cancer-diagnosis-from-traditional-techniques-to-future-innovations
    Building on the foundation of traditional biopsy, modern minimally invasive techniques like needle biopsy, bronchoscopy, and mediastinoscopy aim to procure tissue samples for thorough microscopic examination and accurate diagnosis. […] Liquid biopsy is a technique that involves the analysis of biological fluids like blood or saliva, for circulating free DNA (cfDNA) and circulating tumor DNA (ctDNA) to detect cancer. This non-invasive method holds the promise of enhanced sensitivity and early detection. […] AI algorithms emerge as invaluable allies in the realm of lung cancer diagnosis. Analyzing vast medical datasets, CT scans, and X-rays with meticulous precision, Artificial Intelligence (AI) aids physicians in identifying nuanced signs of cancer. Moreover, it facilitates the personalized treatment plans, ensuring tailored interventions for individual patients.
  • #62 Computer-aided diagnosis for lung cancer screening
    https://research.google/blog/computer-aided-diagnosis-for-lung-cancer-screening/
    At Google we have previously developed machine learning (ML) models for lung cancer detection, and have evaluated their ability to automatically detect and classify regions that show signs of potential cancer. […] We evaluate the systems utility in improving clinician performance through randomized reader studies in both the US and Japan, using the local cancer scoring systems (Lung-RADSs V1.1 and Sendai Score) and image viewers that mimic realistic settings. […] Our study results demonstrated that when radiologists used the system in their clinical evaluation, they had an increased ability to correctly identify lung images without actionable lung cancer findings (i.e., specificity) by an absolute 57% compared to when they didn’t use the assistive system. […] Reader specificity increases with ML model assistance in both the US-based and Japan-based reader studies. […] The system results demonstrate the potential for fewer follow-up visits, reduced anxiety, as well lower overall costs for lung cancer screening.
  • #63 Lung Cancer Diagnosis Tests: Traditional, Modern, and Future Approaches
    https://www.cioncancerclinics.com/blog/article/evolution-of-lung-cancer-diagnosis-from-traditional-techniques-to-future-innovations
    Biomarkers are specific molecules usually from blood testing, which are a marker for a specific cancer. This revolutionary approach focuses on identifying specific molecules within cancer cells, not only providing identification but also offering crucial insights into the aggressiveness and progression of lung cancer. Biomarkers promise a more nuanced understanding of the disease, enabling targeted and personalized treatment strategies. […] Embracing the intricacies of individual variability, precision medicine considers the interplay of genes, environmental factors, lifestyle, vital signs, and imaging findings. This approach tailors therapeutic interventions with unprecedented specificity. Precision medicine heralds a new era where treatments are uniquely crafted for each patient, maximizing efficacy and minimizing side effects.
  • #64 Lung Cancer Blood Tests and Other Screening Tools
    https://www.verywellhealth.com/lung-cancer-diagnosis-blood-test-5210824
    Researchers have looked at the ratio of some types of white blood cells to predict prognosis with early stage tumors, but thus far it does not have a clear benefit in screening for or diagnosing lung cancer. […] With metastatic lung cancer that has spread to the brain or bones (between 25% and 40% of lung cancers at the time of diagnosis), there may be characteristic changes. […] Paraneoplastic syndromes are signs and symptoms caused by hormones or hormone-like substances produced by cancer (or by the body in response to cancer). […] For this reason, there has been some hope that laboratory changes related to paraneoplastic syndromes may help diagnose at least some early-stage lung cancer. […] Screening for a condition refers to looking for and finding a condition before symptoms are present.
  • #65 Lung Cancer Blood Tests and Other Screening Tools
    https://www.verywellhealth.com/lung-cancer-diagnosis-blood-test-5210824
    If a nodule or mass is found on a CT scan, a lung biopsy is most often needed to determine whether the abnormality is cancerous or not. […] Early lung cancers can sometimes be detected on a bronchoscopy. […] In one study, bronchoscopy was able to detect 69% of cancers. […] Currently, almost half of lung cancers are found when they have grown or spread too far to cure the disease. While CT lung cancer screening can reduce lung cancer deaths, it’s only recommended for current or former smokers, and it has a high false positive rate. […] Conventional blood tests are usually normal in the early stages of the disease, but newer biomarker tests could change this. Both protein and DNA biomarkers (liquid biopsy) may provide a way to guide the evaluation of lung nodules in the near future and possibly even offer a way to screen the general population for early-stage lung cancer.
  • #66 Lung cancer breakthroughs: New imaging technologies may change course for top cancer killer
    https://health.ucdavis.edu/news/headlines/lung-cancer-breakthroughs-new-imaging-technologies-may-change-course-for-top-cancer-killer/2024/06
    UC Davis Health is first in the region to deploy two new technologies that bring hope to people with lung cancer. Both provide advanced imaging. One helps catch lung cancer earlier and the other tracks the progress of lung cancer treatment. […] A new state-of-the-art mobile 3D CT imaging system is catching lung cancer earlier by pinpointing potentially cancerous growths for more precise lung cancer biopsies. […] The synergy of these two systems improves the precision and accuracy of lung nodule biopsies, said Chinh Phan, director of the UC Davis Health Interventional Pulmonary Program. This enables safer and earlier diagnosis of lung cancer. […] After a year of using the Cios Spin and Ion together, Phan said he and his team have seen a major shift. Lung cancer is being diagnosed much earlier when it is more treatable. In fact, for the first time, he said that UC Davis Comprehensive Cancer Center is seeing more lung cancers diagnosed at stage 1 as compared to late stage.
  • #67 Current and Future Development in Lung Cancer Diagnosis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC8395394/
    Lung cancer is the leading cause of cancer-related deaths in North America and other developed countries. One of the reasons lung cancer is at the top of the list is that it is often not diagnosed until the cancer is at an advanced stage. Thus, the earliest diagnosis of lung cancer is crucial, especially in screening high-risk populations, such as smokers, exposure to fumes, oil fields, toxic occupational places, etc. […] The current diagnosis of lung cancer includes different types of imaging complemented with pathological assessment of biopsies, but these techniques can still not detect early lung cancer developments. […] Thus, there is an urgent need to identify sensitive and specific biomarkers for early diagnosis. […] Currently, low-dose CT (LDCT) is routinely used for lung cancer screening.
  • #68 Current and Future Development in Lung Cancer Diagnosis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC8395394/
    This review will focus on the current screenings for early diagnosis of lung cancer, the use of potential biomarkers, and the current state of liquid biopsy-based approaches for screening will be discussed as well. […] The main challenge imposed by lung cancer on public health is its poor prognosis because of the advanced stage, as most patients (75%) have either a stage III or IV disease at diagnosis. […] Historically, the only diagnostic tests available for detecting lung cancer in its early stages were chest radiography and sputum cytology. […] Currently, screening for lung cancer with LDCT is recommended in high-risk populations defined as persons who are 55 to 74 years of age with a minimum smoking history of 30 pack-years or more (pack-years = number of cigarette packs smoked per day the number of years smoked), who currently smoke, or have quit in the past 15 years and are disease-free at the time of screening.
  • #69 Current and Future Development in Lung Cancer Diagnosis
    https://www.mdpi.com/1422-0067/22/16/8661
    As highlighted above, both SCLC and NSCLC benefit from using biomarkers in early diagnosis and follow-up of a treatment and even choosing a treatment protocol. […] Screening of high-risk groups allows for early detection at a treatable and curable stage. […] In lung cancer diagnosis using chest radiography, the sensitivity for tumor detection is roughly 1 cm in diameter, which already has over 10^9 cells with a potential of disrupted bronchial and vascular epithelia. […] Two barriers that discourage its implementation for the general population are cost and accessibility. […] The introduction of testing for biomarkers made the most use of lung tissue biopsies by testing for mutations. […] The most common targetable mutation in the gene EGFR, for which testing has been part of the standard practice since 2011, is not continuously assessed.
  • #70 Current and Future Development in Lung Cancer Diagnosis
    https://www.mdpi.com/1422-0067/22/16/8661
    As highlighted above, both SCLC and NSCLC benefit from using biomarkers in early diagnosis and follow-up of a treatment and even choosing a treatment protocol. […] Screening of high-risk groups allows for early detection at a treatable and curable stage. […] In lung cancer diagnosis using chest radiography, the sensitivity for tumor detection is roughly 1 cm in diameter, which already has over 10^9 cells with a potential of disrupted bronchial and vascular epithelia. […] Two barriers that discourage its implementation for the general population are cost and accessibility. […] The introduction of testing for biomarkers made the most use of lung tissue biopsies by testing for mutations. […] The most common targetable mutation in the gene EGFR, for which testing has been part of the standard practice since 2011, is not continuously assessed.
  • #71 Screening for Lung Cancer | Lung Cancer | CDC
    https://www.cdc.gov/lung-cancer/screening/index.html
    The only recommended screening test for lung cancer is low-dose computed tomography (also called a low-dose CT scan, or LDCT). […] Lung cancer screening is recommended only for adults who are at high risk for developing the disease because of their smoking history and age. […] The US Preventive Services Task Force (Task Force) recommends yearly lung cancer screening with LDCT for people who: Have a 20 pack-year or more smoking history, and Smoke now or have quit within the past 15 years, and Are between 50 and 80 years old. […] Lung cancer screening has at least three risks: A lung cancer screening test can suggest that a person has lung cancer when no cancer is present. This is called a false-positive result. […] A lung cancer screening test can find cases of cancer that may never have caused a problem for the patient. This is called overdiagnosis.
  • #72 Lung Cancer: Diagnosis, Treatment Principles, and Screening | AAFP
    https://www.aafp.org/pubs/afp/issues/2022/0500/p487.html
    Patients with suspected lung cancer should be referred to a pulmonologist within a multidisciplinary thoracic oncology team to help guide workup. Confirmation of the diagnosis should be made by one or more of the following methods, with further testing if suspicion is high and findings are negative: sputum cytology, thoracentesis of pleural fluid, bronchoscopy (often with endobronchial ultrasonography and/or electromagnetic navigation with or without fine-needle aspiration), or mediastinoscopy depending on local availability and expertise. […] Staging of lung cancer follows the eighth edition of the American Joint Committee on Cancer’s staging manual. Staging revisions from the seventh edition were based on analysis of a database of 94,708 cases by the International Association for the Study of Lung Cancer Staging from 1999 to 2010. The tumor, node, metastasis (TNM) classification describes the anatomic extent of the disease, is based on clinical and pathologic staging, and guides eventual treatment and prognosis.
  • #73 How We Diagnose Small Cell Lung Cancer | Dana-Farber Cancer Institute
    https://www.dana-farber.org/cancer-care/types/small-cell-lung-cancer/diagnosis
    When a clinician „stages” cancer, he or she is determining its size, its extent, and to what degree it has spread (metastasized) outside its initial location. Typically, cancer stages range from stage 1 (very early and treatable) to stage 4 (advanced, metastasized, and more complex to treat). […] However, in small cell lung cancer, your doctor will often describe the stages as limited or extensive. […] Depending on the stage of the cancer, patients meet with the appropriate combination of a surgical oncologist, medical oncologist, and radiation oncologist. Decisions regarding diagnosis and treatment are thoroughly reviewed by our entire team of clinicians.
  • #74 Lung Cancer: Diagnosis
    https://healthlibrary.brighamandwomens.org/Conditions/Cancer/Tools/34,BLCD1
    What kind of biopsy might I need? The way a biopsy sample is taken out depends partly on where the tumor is and how big it is. Your healthcare provider may suggest one or more of the tests below to help do a biopsy and diagnose lung cancer. […] After any kind of biopsy, the tissue samples are sent to a lab. They’re looked at under a microscope and tested for cancer cells. It often takes up to a week for biopsy results to come back. Along with telling if you have lung cancer, a biopsy can often tell exactly what kind of lung cancer it is. […] A lung biopsy can be done in many ways: […] Bronchoscopy […] Needle biopsy […] Thoracentesis […] Thoracotomy or thoracoscopy. […] Getting your test results. Ask your healthcare provider how long it will take to get your test results and how you’ll get them. Will it be a phone call? Do you need to set up an appointment? […] If lung cancer is found, your provider will talk with you about other tests you may need. Make sure you understand the results and what your next steps should be.
  • #75 Current and Future Development in Lung Cancer Diagnosis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC8395394/
    The early diagnosis of lung cancer remains a challenge because most of the available techniques and methodologies currently in use can detect cancer in advanced stages when treatment and a cure may not be efficient to control the disease. […] In summary, we believe that the trend in the development of more reliable tests for early diagnosis of lung cancer should be focused on biomarker discovery that will alleviate the discomfort of the patients, as well as the burden for the health authorities, as the techniques and methodologies currently in use are expensive.