Materiały źródłowe

• #1 Neurofibroma | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/neurofibroma

  A neurofibroma may cause mild symptoms or no symptoms at all. If the tumor presses against nerves or grows within them, it may cause pain or numbness. […] A neurofibroma might cause no symptoms. If symptoms occur, they’re usually mild. When a neurofibroma grows on or under the skin, symptoms may include: A bump on the skin. The bump may be the color of your skin or pink or tan. Pain. Bleeding. […] If a neurofibroma becomes large or presses against or grows on a nerve, symptoms may include: Pain. Tingling. Numbness or weakness. Change in appearance when a large neurofibroma is on the face. […] Some people with neurofibromas have a genetic condition known as neurofibromatosis type 1 (NF1). A person with NF1 may have many neurofibromas. The number of neurofibromas increases with age. […] A tumor that involves many nerves, known as a plexiform neurofibroma, can occur in a person with NF1. This type of neurofibroma can grow large and cause pain. It also can become cancerous.

• #2 Neurofibroma: Definition, Types & Treatment

  https://my.clevelandclinic.org/health/diseases/22535-neurofibroma

  Neurofibromas affect people in different ways depending on the tumor type, size and location. Some neurofibromas cause small lumps or patches of thickened skin. Other larger neurofibromas can affect peoples internal organs and spinal cords. […] Neurofibroma symptoms vary depending on the tumor type, size and location. Some people who have neurofibromas may never have symptoms. But sometimes, neurofibromas can cause serious medical issues such as paralysis or blindness. […] Symptoms may include paralysis, weakness or numbness from pressure on their spinal cord or peripheral nerves. Some children who have plexiform neurofibromas develop scoliosis caused by tumors pressing into their spines. […] Generally speaking, most people who develop neurofibromas arent affected by the condition. But people who have lots of these tumors or have noticeable tumors may feel their appearance affects their quality of life. If thats your situation, talk to your healthcare provider about surgery to remove the visible tumors that make you feel uncomfortable or self-conscious. Neurofibromas rarely come back after surgery.

• #3 Neurofibromatosis type 1 (NF1)

  https://www.nhs.uk/conditions/neurofibromatosis-type-1/

  The symptoms of neurofibromatosis type 1 (NF1) are often mild. But some people have symptoms that cause problems. […] How severe the symptoms are usually depends on where the tumours are in your body and how big they are. […] Many of the symptoms are there from birth or start during early childhood, but some do not appear until later. […] Symptoms of NF1 can include: light brown patches of skin (caf-au-lait spots) these may be harder to see on brown and black skin, freckles in your armpits or around the tops of your legs, lumps on or just under your skin (neurofibromas) that can be painful or itchy these tend to appear during the teenage years or early 20s, yellow-brown raised dots on the coloured part of your eye (iris) that do not usually affect vision, eye problems, such as a squint, reduced vision, or a bulging eye (which can sometimes cause further symptoms like headaches or feeling and being sick), a large head and below average height, learning difficulties.

• #4 Neurofibroma Symptoms and Treatment | UPMC

  https://www.upmc.com/services/neurosurgery/spine/conditions/tumors-lesions/neurofibroma

  Neurofibromas are benign tumors of the peripheral nerves. Symptoms depend on the location and size of the tumor. They are typically painless, slow-growing masses, and may cause no symptoms. […] Symptoms depend on the size and location of the tumor. These tumors typically are painless and slow-growing. Patients sometimes feel an electric-like shock when light pressure is applied to the tumor. If a motor or sensory nerve is involved, the associated function may be affected. […] Symptoms may include: Back pain that progressively worsens, Decreased sensation, progressive weakness, or paralysis in areas affected by the tumor, Loss of bladder and bowel control. […] If symptoms suggest that the tumor is compressing the spinal cord, corticosteroids are immediately given in high doses to reduce the swelling. These tumors are treated as soon as possible, usually surgically. Because of the risk of nerve damage during surgery, tumors that are not causing symptoms may be left untreated.

• #5 Neurofibroma Causes, Symptoms and Treatments

  https://www.neurosurgeonsofnewjersey.com/blog/neurofibroma-causes/

  Neurofibromas are small tumors of the nerve sheath, which is the tough outer layer that protects the more delicate nerve tissues inside. The majority of these tumors are benign but can still cause unwanted and even debilitating symptoms. […] There are a number of neurofibroma symptoms that can be associated with these tumors. They range from almost imperceptible to completely debilitating. This is not due to the tumor itself, but rather, the fact that it is placing pressure on a nerve or nerves, causing dysfunction. […] Neurofibromas that occur superficially (such as on arms or thighs) can have milder symptoms, such as pain or itching. In some cases, they may grow large enough to require intervention, as they start to press against the nerve theyre attached to. Neurofibromas can also be sensitive to the touch and tight clothing can exacerbate those sensations.

• #6 Pathology Outlines – Neurofibroma-general

  https://www.pathologyoutlines.com/topic/softtissueneurofibroma.html

  Neurofibroma is a benign peripheral nerve sheath tumor comprised of neuronal and fibrous components. It is composed of Schwann cells, perineurial cells, fibroblasts, mast cells and interspersed myelinated and unmyelinated axons within a myxoid and collagenous extracellular matrix. […] Localized lesions: painless, violaceous papule, nodule or subcutaneous mass < 2 cm. Have a characteristic buttonhole sign, where on palpation, the lesion retracts into the subcutis and reappears on the release of pressure. [...] Diffuse lesions: ill defined, indurated plaques with thickened skin; mild numbness or tingling may occur if the lesion is large. [...] Plexiform neurofibromas superficially presents as a skin colored or hyperpigmented nodular swelling. Deep lesions arise from spinal nerve roots and present with pain, numbness, paresthesia, mass effect and sequelae of spinal nerve compression.

• #7 Neurofibroma Causes, Symptoms and Treatments

  https://www.neurosurgeonsofnewjersey.com/blog/neurofibroma-causes/

  When neurofibromas occur at the spinal nerve roots or within the spinal cord, they can be more problematic. Symptoms of spinal neurofibromas can include: Pain in the back or neck and in the extremities. This pain can sometimes be mistaken for other issues, such as a ruptured disc or arthritis of the spine. Numbness and tingling in the legs, arms, feet and hands. The loss of sensation or experiencing symptoms that can mimic a limb falling asleep is not uncommon. Loss of coordination, especially when performing small motor skills or walking. Bowel or bladder leakage or incontinence. A sense of urgency to relieve oneself can also occur. On occasion, if the tumor is large enough or interferes with the vertebrae (the bones in your back), scoliosis (curvature of the spine) can occur.

• #8 Pain in Neurofibromatosis Type 1 – Neurofibromatosis Midwest

  https://www.nfmidwest.org/article/pain-in-neurofibromatosis-type-1/

  One of most common challenges for individuals with NF1 is living with chronic pain. By definition, chronic pain is persistent pain that continues for weeks, months, or even years. This occurs when the pain signals within a persons nerves continue to fire, and the severity can vary by individual. In general, it is estimated that about 25% of the general U.S. population ages 20 and over report pain lasting greater than 24 hours. In patients with NF1, estimates of those experiencing chronic pain range from 35 to 53%. […] What are some of the NF1-related symptoms and conditions that cause pain? Probably the most common of these is plexiform neurofibromas, or PNs. PNs are benign tumors comprised of a proliferation of cells in the nerves. They are found in about 30 to 50% of people with NF1. Most often, they grow rapidly during childhood, although they may go for years without being detected.

• #9 Solitary neurofibroma

  https://dermnetnz.org/topics/solitary-neurofibroma

  Neurofibroma is usually diagnosed in young adults. As neurofibromas persist, they may also be diagnosed in older or younger people. It is equally prevalent in both sexes. […] Solitary neurofibroma usually arises in second or third decade of life and will be located on the skin of the head and neck, trunk or proximal limbs. Characteristics are: A soft, flaccid or rubbery, dermal or subcutaneous, asymptomatic papule or nodule. […] The diagnosis of solitary neurofibroma may be suspected from its typical clinical features, in the absence of significant signs and symptoms of neurofibromatosis. […] Unlike neurofibromatosis, any concern about solitary neurofibroma is purely cosmetic. […] Solitary neurofibroma is a benign tumour and rarely requires any treatment. If there is discomfort, diagnostic uncertainty, or cosmetic concern, it can be surgically excised.

• #10 Neurofibroma – MD Searchlight

  https://mdsearchlight.com/nerve-health/neurofibroma/

  Neurofibromas are a type of lump that can form on nerves. Most of the time, they dont cause any symptoms. However, sometimes they can result in itchiness, pain, or a tingling sensation. The symptoms can vary depending on the type of neurofibroma. Often, people seek medical help because theyre concerned about the way the lump looks. […] Localized neurofibromas are often painless and may appear like a small, skin-colored or purple bump or mass beneath the skin. They can appear anywhere on the body but often show up on the trunk, head, neck, or limbs. When touched, these lumps can retract into the skin and then pop back upon release this is called the buttonhole sign. They are often mistaken for moles or skin tags. […] Diffuse neurofibromas usually show up on the head or neck area as ill-defined, hardened skin patches. If theyre big, they might cause a slight numbness or tingling sensation.

• #11 Schwannoma vs Neurofibroma: A Patient’s Guide to the Difference

  https://www.ctbta.org/news/blog/schwannoma-vs-neurofibroma-patients-guide-difference

  Neurofibroma is a type of tumor that grows on the nerves throughout the body. These tumors come from the nerve tissue itself and can be found on or under the skin or deeper in the body. […] Most Neurofibromas are benign, but in rare cases, they can become cancerous. They grow at a slow rate and can vary in size. […] Neurofibroma symptoms are diverse, depending on the tumor’s size and location. Common signs include small bumps on or under the skin, pain or tingling, and in some cases, changes in skin color over the tumor. […] When Neurofibromas grow on larger nerves, they might cause more noticeable problems like weakness or numbness in the limbs. […] The treatment for Neurofibromas varies based on the tumor’s size, location, and symptoms. Many Neurofibromas don’t need immediate treatment and can be monitored for changes.

• #12 Neurofibromatosis | National Institute of Neurological Disorders and Stroke

  https://www.ninds.nih.gov/health-information/disorders/neurofibromatosis

  Symptoms can develop slowly, so getting the correct diagnosis may take several years. […] Signs and symptoms of NF1 include: […] Soft, pea-sized bumps called neurofibromas. These are common and can appear on the skin (known as cutaneous), under the skins surface (subcutaneous), or on any nerve throughout the body. Although some cutaneous neurofibromas develop in childhood, most appear during or after the teenage years and may occur more often with age. […] Plexiform neurofibromas. These happen in about 50% of patients with NF1 and involve multiple nerves and surrounding tissues near nerves and organs in the body. About 10-15% of the neurofibromas can become dangerous over a persons lifetime and turn into a malignant tumor of nerve coverings. […] Complications of NF1 include: […] More common and aggressive scoliosis, or curvature of the spine.

• #13 Koselugo® (selumetinib) | About NF1 PN

  https://koselugo.com/about-nf1-pn

  Plexiform neurofibromas generally continue to grow throughout childhood. […] As plexiform neurofibromas grow, they may cause new or worsening symptoms. […] Plexiform neurofibroma symptoms to look out for: Lumps under the skin, Unusual coloring on the surface of the skin, Increased pain or discomfort, Difficulty moving, Tingling or numbness, Trouble breathing, Changes in eyesight, Bedwetting or other bowel or bladder problems, Fatigue and/or weakness, Irritability or change in behavior, Eating problems, such as loss of appetite, Difficulty falling or staying asleep. […] Plexiform neurofibroma growth may be unpredictable and should not be ignored. Plexiform neurofibromas typically grow fastest in the first 10 years of life, making it important to have a conversation with your child’s doctor as early as possible if your child is experiencing symptoms. […] Most people in the study saw significant growth of their plexiform neurofibromas over time (20% growth or more). […] No one in this study saw their plexiform neurofibromas shrink more than 20% per year.

• #14 10 Top Neurofibromatosis Symptoms & Signs | MD Anderson Cancer Center

  https://www.mdanderson.org/cancer-types/neurofibromatosis/neurofibromatosis-symptoms.html

  This is the most common form of neurofibromatosis. Its symptoms include: […] Two or more neurofibromas (slow-growing tumors of the nervous system) or one plexiform neurofibroma (peripheral nerve tumor), which can cause disfigurement. […] NF2 is distinguished by tumors that grow on the hearing nerves. This can lead to partial or complete deafness, a ringing in the ears or balance problems. The disease usually manifests between the ages of 18 and 22. […] Schwannomatosis can result in sometimes-serious pain caused by the growths pressing on nerves and surrounding tissue.

• #15 Neurofibromatosis type 1 – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/neurofibromatosis-type-1/symptoms-causes/syc-20350490

  Neurofibromatosis type 1 (NF1) usually is diagnosed during childhood. Symptoms are seen at birth or shortly afterward and almost always by age 10. Symptoms tend to be mild to moderate, but they can vary from person to person. […] Symptoms include: […] Soft, pea-sized bumps on or under the skin called neurofibromas. These benign tumors usually grow in or under the skin but can also grow inside the body. A growth that involves many nerves is called a plexiform neurofibroma. Plexiform neurofibromas, when located on the face, can cause disfigurement. Neurofibromas may increase in number with age. […] Complications of neurofibromatosis type 1 (NF1) vary, even within the same family. Generally, complications occur when tumors affect nerve tissue or press on internal organs. […] Some people who have NF1 develop cancerous tumors. These usually arise from neurofibromas under the skin or from plexiform neurofibromas. People who have NF1 also have a higher risk of other forms of cancer.

• #16 Neurofibroma Tumors | We treat Children with these Tumors

  https://scoliosisinstitute.com/neurofibroma-tumors/

  Nerve tumors called neurofibromas result in soft lumps on or under the skin. Neurofibromas can grow on any main or minor nerve in any place on the body. […] Only 5% of those with spinal neurofibromas will need treatment to stop the growths from impacting nerves along the spinal column. […] Furthermore, these tumors can cause various symptoms, including: Pain, Numbness, Weakness, Potential complications related to nerve compression. […] The symptoms of spinal neurofibroma tumors can vary depending on the location and size of the tumor. Some common symptoms may include: Back or neck pain: Tumors pressing against spinal nerves or surrounding structures can cause localized pain in the affected area. Numbness or weakness: If the tumor compresses nerves, it may lead to numbness, tingling, or muscle weakness in the corresponding area. Loss of bowel or bladder control: In rare cases where the tumor affects the lower spinal cord, it can lead to problems with bowel or bladder function.

• #17 Spinal neurofibroma | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/spinal-neurofibroma?lang=us

  Spinal neurofibromas are often asymptomatic. If symptoms are present, they usually include pain and/or radicular sensory changes due to the typical location along the dorsal sensory roots. Weakness is less common. As multiple lesions are common, patients may present with multiple radiculopathies. Myelopathy may occur if the lesion is large. […] Neurofibromas are slow growing. Surgery is the treatment of choice for symptomatic lesions. However, as neurofibromas tend to encase the nerve roots, they usually cannot be dissected from the parent nerve. 5-10% of neurofibromas undergo malignant change, which may be indicated by rapid growth.

• #18 Neurofibromatosis – Types and Treatments – OrthoInfo – AAOS

  https://orthoinfo.aaos.org/en/diseases–conditions/neurofibromatosis

  Neurofibromatosis can cause skin changes, bone deformities, and other problems. Often, symptoms are present at birth or develop during childhood. Some people have symptoms that are mild or not noticeable at all. In other people, neurofibromatosis causes significant disability. In many cases, neurofibromatosis symptoms worsen as a patient ages. […] Symptoms begin at birth or early in life. People with NF1 may develop: […] Most NF1 tumors are benign; however, a small number become cancerous. […] Scoliosis in children with NF1 can range from mild to severe curves. In many cases, the spinal curves progress slowly, at a similar rate as curves seen in children with idiopathic scoliosis. […] The majority of people with NF1 will experience only moderate symptoms throughout their lives. Only a small percentage of NF1 patients will have orthopaedic problems that require treatment. […] Scoliosis associated with neurofibromatosis may require more intensive treatment than scoliosis that is not associated with the disease.

• #19 Neurofibromatosis | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/neurofibromatosis

  Neurofibromas harmless, soft pink, small lumps that can grow on nerves anywhere in the body. They are most visible in the skin. Most commonly, neurofibromas first appear around adolescence but, by age 30, almost all people with NF1 will have several (and some have hundreds). Over time, neurofibromas may slowly grow in size. It is rare for them to cause any problems; however, some people may have concerns about their appearance. These lumps are usually absent or are few in childhood and generally increase in number during puberty or pregnancy. […] Cancer risk there is a slightly increased risk (10 per cent over the persons lifetime) that a neurofibroma can become cancerous. Any rapid change in the growth or symptoms of a neurofibroma should be reported to a doctor. […] Signs of NF2 usually develop in late adolescence, but may not be obvious until adult life. Some people do not develop problems until their 40s or 50s.

• #20 Neurofibromatosis Type 1: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1177266-overview

  Neurofibromatosis type 1 (NF1) is a multisystem genetic disorder that is characterized by cutaneous findings, most notably caf-au-lait spots and axillary freckling, by skeletal dysplasias, and by the growth of both benign and malignant nervous system tumors, most notably benign neurofibromas. […] Signs and symptoms of NF1 can vary widely from patient to patient. The earliest clinical finding usually seen in children with NF1 is multiple caf-au-lait spots. These may be present at birth or may appear over time, frequently increasing in size and number throughout childhood. […] Subcutaneous or cutaneous neurofibromas are seen rarely in young children but appear over time in older children, adolescents, and adults. […] Adolescence for both genders may precipitate the development of subcutaneous and cutaneous neurofibromas. Increase in the size of existing neurofibromas and the appearance of new neurofibromas during pregnancy is a frequent observation in women with NF1.

• #21 Neurofibromatosis type 1 (NF1)

  https://www.rch.org.au/kidsinfo/fact_sheets/Neurofibromatosis/

  NF1 is a variable disorder, which means that it can affect children in many different ways. It usually causes freckles or spots, most often on the skin or eyes, and benign (not cancer) swelling or lumps around the nerves. […] Many children with NF1 have no or very few medical problems, but about four in 10 children will have some complications. […] NF1 can affect many different organs in the body in very different ways, but some features of the condition are more common. The major features of NF1 include: […] Neurofibromas: These are benign swellings around nerves, which are usually seen as small lumps in or under the skin. Neurofibromas are not normally seen in young children, but tend to increase in number and size around puberty and in adult life. They are usually small and generally cause no physical symptoms.

• #22 Neurofibromatosis type 1 (NF1)

  https://www.nhs.uk/conditions/neurofibromatosis-type-1/

  Your symptoms and how severe they are can change over time. Its important to tell your doctor about any new symptoms or changes to existing symptoms. […] Neurofibromatosis type 1 (NF1) is a lifelong condition that usually gets worse over time. It affects everyone who has it differently. […] As the condition gets gradually worse and can cause serious problems, it can affect life expectancy. Your care team will be able to speak to you about this if you want to know more. […] Sometimes neurofibromatosis type 1 (NF1) can lead to further problems or serious complications. […] These can include: high blood pressure, bone and joint problems some children have weak bones that can cause bowed legs or a curved spine (scoliosis), a tumour on the nerve to the eye (optic nerve), which can cause vision problems, depression, anxiety and low self-esteem caused by large tumours or tumours on your face, cancer some tumours can become cancerous and theres a higher risk of developing certain types of cancer, including breast cancer and brain cancer. […] If you have NF1 and are pregnant, you may get problems, such as narrowed arteries and high blood pressure. You may also get more tumours, or your tumours may get bigger and be itchy.

• #23 Neurofibroma – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK539707/

  Plexiform neurofibromas most commonly occur on the head/neck, trunk, and extremities. They surround multiple nerve fascicles and can grow to be large. If superficial, they commonly present as a skin-colored or hyperpigmented nodular swelling. Deeper lesions arising from spinal nerve roots may become highly irregular and tortuous. Deep lesions may present with pain, numbness, paresthesias, mass effect, and sequelae of spinal nerve compression. […] All types of neurofibromas are benign. Local recurrence is extremely rare complete excision of the lesion, and the risk of malignant transformation is exceedingly low; however, malignant transformation affects approximately 10% of patients with NF1. […] In plexiform lesions, complications arise from the inherent risks of surgery, and in rare cases, the inability to surgically remove the entire lesion. In patients with NF1 and persistent lesions, there is an increased risk of malignant transformation to malignant peripheral nerve sheath tumors.

• #24 Neurofibromatosis | Types, Symptoms, Diagnosis & Treatment

  https://www.cincinnatichildrens.org/health/n/neurofibromatosis

  Scoliosis. About 15-20% of children with NF1 can develop scoliosis (sideways curvature of the spine), sometimes early in childhood. This condition can worsen over time and may require surgery. […] Neurofibromatosis 2 is a genetic disorder that causes slow-growing tumors on the eighth cranial nerves and other nerves located in the brain and spine. It can result in hearing loss, vision loss and other concerns. […] Signs and symptoms of neurofibromatosis 2 vary in severity and can include: […] Gradual hearing loss […] Balance problems […] Neurofibromatosis 2 is a chronic (long-term) condition and can cause serious complications.

• #25 Neurofibroma – Wikipedia

  https://en.wikipedia.org/wiki/Neurofibroma

  A neurofibroma is a benign nerve-sheath tumor in the peripheral nervous system. They can result in a range of symptoms from physical disfiguration and pain to cognitive disability. […] Dermal neurofibromas typically arise in the teenage years and are often associated with the onset of puberty. In people with neurofibromatosis type I, they tend to continue to increase in number and size throughout adulthood, although limits exist as to how big they get, and cases progress at highly variable rates. […] Dermal neurofibromas can lead to stinging, itching, pain, and disfigurement. […] Plexiform neurofibromas can cause disfigurement, neurological, and other clinical deficits. […] Plexiform neurofibromas have the potential to cause severe clinical complications if they occur in certain areas. […] About 10% of plexiform neurofibromas undergo transformation into a malignant peripheral nerve sheath tumor.

• #26 What Is Neurofibroma?

  https://www.icliniq.com/articles/neurological-health/neurofibroma

  Cutaneous neurofibromas can grow and multiply as people become older, but they usually do not cause any symptoms other than itching and soreness. […] Spinal neurofibromas are tumors that form on the nerves that leave the spine. Spinal neurofibromas are more prevalent in adults than in children, and if they get big enough, they can compress nerves, causing weakness, pain, and numbness. […] Plexiform neurofibromas could become malignant, even if they start out benign, and should be regularly watched by a physician. […] Neurofibromas can change the way you appear. Neurofibromas can grow big enough to harm neighboring organs and tissues in certain individuals.

• #27 Neurofibroma (Neurofibromatosis) Symptoms and Treatment | UPMC

  https://www.upmc.com/services/neurosurgery/brain/conditions/brain-tumors/neurofibroma

  Neurofibromas typically are painless, slow-growing masses, and may cause no symptoms. […] Symptoms depend on the location and size of the tumor. Neurofibromas typically are painless and slow-growing. […] You may feel an electric-like shock when light pressure is applied to the tumor. If a motor or sensory nerve is involved, the associated function may be affected.

• #28 How neurofibromatosis 1-associated plexiform neurofibromas progress

  https://www.medicalnewstoday.com/articles/nf1-pn-progression

  Rapid NF1-PN growth and symptom progression are typical during early childhood, but disease progression can occur at any time. […] NF1-PN generally develops at birth or in early childhood, growing most rapidly before 5 years of age. During the early years, NF1-PN typically progresses at the fastest rate, with tumors potentially increasing in volume by 20% to 240% per year. […] As people age, NF1-PN tumor growth usually slows. In adulthood, tumor growth greater than 20% is uncommon, and available data suggests that most increase in size by less than 5% annually. […] People with NF1-PN may experience various symptoms depending on how the tumors affect their nerves. These symptoms may change over time as tumors grow or shrink. […] A 2018 review involving 41 people with NF1-PN looked at how the symptoms associated with these tumors change over time. Over approximately 6.5 years, more people reported symptoms related to pain, motor dysfunction, and bladder and bowel problems.

• #29 Neurofibroma Development in Neurofibromatosis Type 1: Insights from Cellular Origin and Schwann Cell Lineage Development

  https://www.mdpi.com/2072-6694/14/18/4513

  Neurofibromas have been thought to originate from cells within the Schwann cell lineage, while no consensus has been reached so far about the specific time of initiation and the exact cellular origin. […] One of the hallmarks of NF1 is the development of peripheral nerve sheath tumors (PNSTs). These are known as neurofibromas and are composed of a mixture of nervous and fibrous tissue, such as Schwann cells (SCs), fibroblasts, endothelial cells, mast cells, macrophages, neurons, and extracellular matrix (ECM). […] Cutaneous neurofibromas (cNFs) are confined to nerve terminals in the dermis and occur in almost all patients with NF1, causing itching or stinging sensations. They typically emerge around puberty and increase in number, potentially reaching thousands of tumors over a lifetime (especially in pregnant women, as a result of regulation by sex hormones).

• #30 Neurofibroma Development in Neurofibromatosis Type 1: Insights from Cellular Origin and Schwann Cell Lineage Development

  https://www.mdpi.com/2072-6694/14/18/4513

  Growing pNFs can put pressure on the surrounding tissues, resulting in severe pain, neurological damage, and skeletal destruction. In addition, there is an approximately 10% lifetime risk of pNFs transforming into NF1-related malignant PNSTs (MPNSTs); these often arise within pre-existing pNFs, rather than cNFs, as a result of additional genetic mutations occurring in a subset of key genes in a specific order. […] While, for decades, neurofibromas have been believed to originate from cells within the SC lineage, the specific time of initiation and exact cellular origin of pNFs and cNFs remain controversial, despite intensive studies. […] In the process of neurofibroma growth and progression, SCs, the most abundant glial cells in the PNS and also the suspectable tumor cells of neurofibromas, have been shown to play multiple roles.

• #31 How neurofibromatosis 1-associated plexiform neurofibromas progress

  https://www.medicalnewstoday.com/articles/nf1-pn-progression

  Worsening of symptoms was most likely to occur in people whose NF1-PN tumors grew. […] The clinical progression of NF1-PN is highly variable both between and within people. In general, rapid tumor growth and progression of symptoms are observed during the early childhood years, but disease progression can occur at any time. Spontaneous shrinkage of tumors can also occur, though it is less common.

• #32 Pain in Neurofibromatosis Type 1 – Neurofibromatosis Midwest

  https://www.nfmidwest.org/article/pain-in-neurofibromatosis-type-1/

  Many researchers are developing and investigating drugs that they hope will prevent tumor growth and ultimately shrink the size of PNs. But right now, the main treatment is surgical removal of the tumors. […] NF1-related symptoms sometimes can be managed with pain medication, including nonsteroidal anti-inflammatory drugs (NSAIDs, such as ibuprofen), anticonvulsants (such as Neurontin), and narcotics (such as morphine and oxycodone). […] Many of these techniques are paid for by insurance, although coverage varies widely. […] Yoga has been found helpful among adults with arthritis, low back pain, and other conditions. Its benefits include a reduction in pain severity and an increase in ones ability to accomplish their day-to-day tasks. […] It is very important to inform your doctor immediately of any new pain or if your pain increases, especially if the pain emanates from a known PN since new or worsening pain could indicate tumor growth or a malignancy.

• #33 Plexiform Neurofibromas

  https://www.webmd.com/brain/plexiform-neurofibromas

  Symptoms depend on where your tumor is and how large it grows. In general, plexiform neurofibromas may cause: […] Pay attention to how yours look and feel over time. Some warning signs to watch for include: […] Tell your doctor right away if you have these symptoms, or weight loss and night sweats. This may be a sign a plexiform neurofibroma has turned into cancer. […] About 50% occur above the shoulders. A tumor on your face or head can change how you look. It can also put pressure on your brain. You may get headaches. Often, kids with NF1 and plexiform neurofibromas have cognitive issues, such as trouble learning. […] You may have symptoms such as: […] You may get a curve in your spine called scoliosis. You may have other nerve problems, too. These include: […] There isnt a cure for PNs, and sometimes they can grow back even after treatment. But its hard to know if thatll happen to you or your child. […] See your doctor sooner if you notice any new tumors or changes in the old ones. Theyll want to make sure nothing more serious is going on.

• #34 Neurofibromatosis Type 1 (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/nf.html

  Most newborns with neurofibromatosis type 1 have no symptoms, but some have curved lower leg bones. […] By their first birthday, most children with NF1 have several skin spots, called caf-au-lait („coffee with milk”) spots because of their color. […] Children with NF1 may be slower to walk, talk, and reach other milestones than most kids. They also may have: bumps in and under the skin (called neurofibromas), a head that looks large for the body, headaches, trouble learning, attention problems and hyperactivity, a shorter height than most children the same age, side-to-side curves in the backbone (scoliosis), curving, thinning, or weakness of the forearms or lower leg bones, freckles in their armpits or in the crease between the belly and hip (groin). […] Neurofibromas can cause appearance problems and be painful. Very large neurofibromas (called plexiform neurofibroma) may turn into cancer. […] The symptoms of NF1 are mild in some children, but severe in others.

• #35 Neurofibromatosis | Children’s Hospital Colorado

  https://www.childrenscolorado.org/conditions-and-advice/conditions-and-symptoms/conditions/neurofibromatosis/

  Children born with neurofibromatosis develop benign (noncancerous) tumors on nerve endings throughout their bodies. Symptoms generally appear in early childhood and can range from mild to serious. The severity of NF1 varies from person to person. Even individuals in the same family can experience NF differently, for reasons that doctors don’t yet understand. […] Neurofibromatosis symptoms typically appear during childhood. Signs may include: […] One of the most common, early signs of NF1 are freckles and light brown patches of skin called caf au lait (French for coffee with milk) macules. They typically appear under the arms, in the folds of the skin and in the groin. These harmless skin changes may be present at birth or may develop later. […] Small, benign growths called neurofibromas can develop on or just under the skin anywhere on the body. These growths are typically harmless. Other growths called plexiform neurofibromas are larger and can sometimes become cancerous.

• #36 Neurofibromatosis | Types, Symptoms, Diagnosis & Treatment

  https://www.cincinnatichildrens.org/health/n/neurofibromatosis

  Neurofibromatosis 1 is the most common type of neurofibromatosis, affecting 1 in 3,000 people. NF1 is characterized by: […] Symptoms can worsen over time or stay the same. About two-thirds of people with NF1 have mild to moderate symptoms during their lives. The other third will have more severe complications at some time during their life. […] Plexiform neurofibromas (PNs) are a larger type of neurofibroma that usually begin in childhood. They usually appear as a soft mass under the skin. […] These tumors are often difficult to remove with surgery. There is a small chance that cancer can develop within a plexiform neurofibroma over time. […] Children with neurofibromatosis 1 can experience additional symptoms, such as: […] Learning disabilities. About 60% of children with neurofibromatosis 1 will have some type of learning disability or attention-deficit / hyperactivity disorder (ADHD).

• #37 Neurofibromatosis: Managing Symptoms | Pasadena, CA

  https://drpanossian.com/blog/neurofibromatosis-managing-symptoms-effective-treatments/

  Symptoms vary greatly between individuals, underlining the importance of personalized care in managing this genetic disease and its complex clinical manifestations. […] Adults with NF1 face risks like atypical neurofibromas, peripheral nerve sheath tumors, and an increased risk of breast cancer. Advanced age in adults influences symptom progression and life expectancy. […] Neurofibromatosis can lead to sensory challenges that are particularly common in individuals with Neurofibromatosis Type 2 (NF2) but can also occur in those with other types of the condition. […] Frequent screenings for hearing and vision are essential. These allow for the early identification of changes and risk factors, which enables prompt and effective intervention. […] Physical therapy can be pivotal in symptom management for neurofibromatosis. It helps improve muscle strength, coordination, and flexibility, which are often compromised by tumor growth on nerves. […] Regular monitoring and follow-up are crucial in managing neurofibromatosis. This allows for early detection of new symptoms or changes in existing ones and timely intervention.

• #38 Pediatric Neurofibromatosis Type 1 (NF1) – UChicago Medicine

  https://www.uchicagomedicine.org/comer/conditions-services/pediatric-neurology-neurosurgery/conditions-services/neurofibromatosis/nf-1

  In some people, NF1 can get worse over time. For example, neurofibromas may appear or grow during the hormonal changes that occur in teenage years and during pregnancy. While the problems caused by NF1 can be serious, this disorder usually does not keep people from living a normal and productive life.

• #39 Reddit – The heart of the internet

  https://www.reddit.com/r/neurofibromatosis/comments/18sj69w/symptoms_developing_in_adulthood/

  Is it possible for someone to show no signs/symptoms of NF1 and then have mild symptoms develop in adulthood? I am 25 and have some axillary freckling on one side and a few cafe au lait spots, all of which has developed in the last 3 years or so. From what I understand it would be odd for symptoms to begin appearing this late in life, but what other causes are there of axillary freckling? […] Im currently pursuing genetic testing but I expect it will be months before I have a definitive answer.

• #40 Neurofibroma – Hancock Health

  https://www.hancockhealth.org/mayo-health-library/neurofibroma/

  A neurofibroma may cause mild symptoms or no symptoms at all. If the tumor presses against nerves or grows within them, it may cause pain or numbness. […] A neurofibroma might cause no symptoms. If symptoms occur, they’re usually mild. When a neurofibroma grows on or under the skin, symptoms may include: A bump on the skin. The bump may be the color of your skin or pink or tan. Pain. Bleeding. […] If a neurofibroma becomes large or presses against or grows on a nerve, symptoms may include: Pain. Tingling. Numbness or weakness. Change in appearance when a large neurofibroma is on the face. […] A tumor that involves many nerves, known as a plexiform neurofibroma, can occur in a person with NF1. This type of neurofibroma can grow large and cause pain. It also can become cancerous. […] Neurofibromas most often are found in people ages 20 to 30 years old.

• #41 Neurofibromatosis Type 1 Treatment & Management: Approach Considerations, Medical Care, Surgical Care

  https://emedicine.medscape.com/article/1177266-treatment

  Annual examinations should focus on potential complications of NF. Each examination should include blood pressure measurement, assessment of the skin for typical lesions (including early or growing neurofibromas), visual acuity check, evaluation of the eyes for evidence of proptosis or strabismus, and examination of the spine and extremities for any abnormalities. Neurologic evaluation should include a careful history for headaches or motor or sensory symptoms as well as a comprehensive motor and sensory examination. […] Symptoms of spinal cord neurofibromas may be subtle and slowly progressive; prompt identification and early surgical intervention allow for optimal outcome. […] Cutaneous examination performed at each visit should look for new neurofibromas or progression of preexisting lesions. Plexiform neurofibromas may be locally invasive, therefore clinical evaluation should be directed at determining the extent of involvement and detecting evidence of bony erosion or nerve entrapment.

• #42 Neurofibromatosis type 1 (NF1)

  https://www.rch.org.au/kidsinfo/fact_sheets/Neurofibromatosis/

  Rarely, children with NF1 may have other complications, such as: […] high blood pressure (hypertension) […] curvature of the spine (scoliosis) […] large benign nerve tumours (called plexiform neurofibromas these are usually present at birth) […] spine and brain tumours that are usually benign […] It is very important that children with NF1 have their eyes checked regularly, as they are at risk of developing optic gliomas. Optic gliomas are small tumours on the nerves behind the eyes. The tumours are benign, but can affect vision by putting pressure on the nerves. […] Every child with NF1 is at risk of complications, so it is important to have regular reviews by a doctor and regular eye checks.

• #43 Neurofibromatosis | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/neurofibromatosis

  Neurofibromatosis type 1 is a genetic condition that can cause a variety of symptoms, including: […] It’s difficult to predict how anyone’s NF1 symptoms will progress. […] Most people with NF lead healthy, productive lives. […] It’s impossible to predict how anyone’s NF1 will progress, even by looking at a family member who also has the condition. […] Unfortunately, NF1 is highly unpredictable. At this time, it’s very difficult to predict whether your child’s symptoms will be mild, moderate or severe. Severe complications are rare. […] Neurofibromas can be removed, but the surgery may leave a scar, and the neurofibroma may grow back. […] Neurofibromas usually appear during puberty and adulthood. A person with NF1 may develop only a few or more; at present, there’s no way to predict how many neurofibromas will develop. […] If your child’s tumors become painful, grow suddenly or otherwise change in appearance, contact your doctor right away.

• #44 Impact and Symptoms of NF1-PN | NF1-PN Patient

  https://www.nf1pn.com/symptoms/

  The tumors associated with NF1 are known as plexiform neurofibromas (PNs). Because the size, number, and location of tumors vary, they can affect the body in different ways. Common symptoms that people with NF1-PN experience include: […] While sensation and severity vary, many people living with NF1-PN report pain when their tumor is touched. […] If a joint or limb is impacted, NF1-PN can cause issues with how you walk. […] Since tumors are most often found on the head, neck, and face, they can cause noticeable changes to how you look. […] Depending on the location of PNs, some people may also experience a variety of symptoms, including problems with their hearing, vision, or breathing. It is possible for PNs to become cancerous in up to 16% of people living with NF1. […] There may be times when PNs are growing quickly and other times when they don’t grow or change. Even if symptoms aren’t bothering you or the PNs don’t appear to be changing, it’s important to see a healthcare provider who can keep an eye on things and help make sure the condition doesn’t get worse.

• #45 Schwannoma vs Neurofibroma: A Patient’s Guide to the Difference

  https://www.ctbta.org/news/blog/schwannoma-vs-neurofibroma-patients-guide-difference

  When treatment is needed, surgery is the most common option. It’s aimed at removing the tumor and relieving any symptoms it’s causing. […] However, surgery can be tricky, especially for tumors that are deep or intertwined with nerves. In these cases, doctors have to balance removing as much of the tumor as possible with the risk of nerve damage. […] Another option is medication. In recent years, drugs that target specific pathways in tumor growth have shown promise in treating Neurofibromas, especially in people with NF1. These medications can help shrink the tumors or slow their growth. […] Radiation therapy is less common for Neurofibromas but might be used in specific cases, such as when the tumor is hard to remove with surgery.

• #46 Neurofibroma – Hancock Health

  https://www.hancockhealth.org/mayo-health-library/neurofibroma/

  Neurofibroma treatment isn’t needed for a single tumor with no symptoms. Healthcare professionals usually monitor the neurofibroma. Surgery may be needed if the tumor is causing symptoms or for cosmetic reasons. Symptoms can be relieved by removing all or part of a neurofibroma that’s pressing on nearby tissue or damaging organs.

• #47 Neurofibromatosis: Treatment, Procedure, Cost, Recovery, Side Effects And More

  https://www.lybrate.com/topic/neurofibromatosis

  In cases of severe symptoms, the doctor might even recommend for surgical treatments if necessary. […] For patients having neurofibromatosis type 2 (NF2) and experiencing complete or partial hearing loss or tumor growth, the doctors might recommend for surgical treatments to remove the tumors that were causing the problem. […] The problem of neurofibromatosis, being a genetic disorder, has no complete recovery as such. Only the symptoms that develop within the persons suffering from this problem, can be treated temporarily by medication, surgical methods, radiotherapy and/or chemotherapy. […] There is no permanent cure for the problem of neurofibromatosis. However treatment of patients suffering from such conditions can be done in order to recover them from the symptoms that occur in such cases.

• #48 Neurofibromatosis: Types, Symptoms, Causes, and Treatment

  https://www.webmd.com/pain-management/neurofibromatosis

  One possible schwannomatosis complication is severe pain that requires specialist medical treatment or surgery. […] Your outlook depends on the type of NF you have. Often, the symptoms of NF1 are mild, and people who have it are able to lead full and productive lives. Sometimes, pain and deformity can lead to significant disability.

• #49 Neurofibroma Tumors | We treat Children with these Tumors

  https://scoliosisinstitute.com/neurofibroma-tumors/

  The management of spinal neurofibroma tumors depends on several factors, including the size, location, and symptoms experienced by the patient. Treatment options may include: Observation: If the tumor is small and asymptomatic, the doctor may recommend regular monitoring without immediate intervention. Surgery: Surgeons will consider surgical removal of the tumor if it is causing significant symptoms or if there is concern about its growth. […] Neurofibromas have an impact on your quality of life.

• #50 Pain in Neurofibromatosis Type 1 – Neurofibromatosis Midwest

  https://www.nfmidwest.org/article/pain-in-neurofibromatosis-type-1/

  Up to half of people with NF1 may experience recurrent headaches that are severe enough to interfere with their daily lives. These headaches can begin during childhood, and are typically described as migraines or tension headaches. […] About one fourth of people with NF1 develop scoliosis or other orthopedic problems. Scoliosis often is treated with surgery and corrective braces, both of which can be quite painful and can negatively impact a persons quality of life. […] Given the many pain-related symptoms and complications in individuals with NF1, it is important to let your doctor know about any pain you have. […] Not surprisingly, researchers have found that more severe symptoms, including pain, are associated with diminished quality of life among adults and children with NF1. Further, more severe pain has been found among children who have more symptoms of depression and anxiety.

• #51 Neurofibroma: Definition, Types & Treatment

  https://my.clevelandclinic.org/health/diseases/22535-neurofibroma

  Neurofibromas are benign tumors that rarely cause serious medical issues. People who have many neurofibromas or noticeably large neurofibromas sometimes feel self-conscious about their appearance, though. Surgery might be an option. […] Neurofibromas can also be a symptom of neurofibromatosis, a rare, inherited condition that can cause serious medical issues.

• #52 Neurofibromatosis – Wikipedia

  https://en.wikipedia.org/wiki/Neurofibromatosis

  Neurofibromatosis type I (NF1) is typically characterized by caf au lait spots (light-brown flat patches of skin), neurofibromas (small bumps in or under the skin), scoliosis (side-way curvature of the back), and headaches. […] In NF1, symptoms are often present at birth or develop before 10 years of age. […] While the condition typically worsens with time, most people with NF1 have a normal life expectancy. […] In NF2, symptoms may not become apparent until early adulthood. […] NF2 increases the risk of early death. […] The main symptom of schwannomatosis is localized pain. This pain is due to tissues and nerves experiencing more pressure because of nearby tumors. […] In most cases, symptoms of NF1 are mild, and individuals live normal and productive lives. In some cases, however, NF1 can be severely debilitating and may cause cosmetic and psychological issues. The course of NF2 varies greatly among individuals. In some cases of NF2, the damage to nearby vital structures, such as other cranial nerves and the brain stem, can be life-threatening. Most individuals with schwannomatosis have significant pain. In some extreme cases, the pain will be severe and disabling. […] Schwannomatosis symptoms develop in early childhood and can worsen with time. Typically life expectancy is unaffected in those with schwannomatosis.

• #53 Neurofibromatosis Treatment Pipeline is Evolving with Potential Therapies

  https://www.delveinsight.com/blog/neurofibromatosis-treatment-outlook

  There is an increased rate of malignant peripheral nerve sheath tumors and this type of sarcoma develops in patients with Neurofibromatosis Type 1. […] In particular, cutaneous neurofibromas which are neurofibromas on the skin can be very disfiguring and affect patients quality of life (QOL). […] The severe burden of Neurofibromatosis with plexiform neurofibromas on the QOL of patients demonstrates the high unmet need for an effective treatment option that can reduce tumor burden and improve QOL.

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