Neurofibromatosis (NF) is a set of complex genetic disorders that affects almost every organ system, causing tumors to grow on nerves in the brain and throughout the body. While half of all affected people inherit the disorder, new cases can arise spontaneously through mutations (changes) in the NF genes.

Diagnosed most often in children and young adults, NF occurs worldwide and in all races, ethnic groups, and both sexes. Treatments for NF are presently aimed at controlling symptoms, but surgery can help to alleviate any painful and disfiguring tumors.

Neurofibromatosis Type 1

Neurofibromatosis Type 1 (NF1) is among the world’s most common genetic disorders, occurring in about one of every 3,000 births. In most cases, symptoms of NF1 are relatively mild, allowing patients to live normal and productive lives. However, the disorder can also be debilitating and, in some cases, life-threatening. 


Schwannomatosis is a rare form of Neurofibromatosis with multiple subtypes. Some forms affect approximately 1 in 20,000 people, whereas other types affect 1 in 70,000 people. Only recently recognized, this genetic condition does not have a clear inheritance pattern. Common features of Schwannomatosis include the development of schwannomas on the cranial, spinal and peripheral nerves.


Neurofibromatosis Type 2-Schwannomatosis (NF2-Schwannomatosis) affects approximately 1 in 40,000 people. Most individuals with NF2-Schwannomatosis experience their first symptoms during the late teenage years or in their early 20s. A few people develop symptoms in childhood and some do not have problems until their 40s or 50s.