What is Neurofibromatosis?
The neurofibromatoses are genetic disorders of the nervous system that primarily affect the development and growth of neural (nerve) cell tissues. These disorders cause tumors to grow on nerves and produce other abnormalities such as skin changes and bone deformities. Although many affected persons inherit the disorder, between 30 and 50 percent of new cases arise spontaneously through mutation (change) in an individual’s genes. Once this change has taken place, the mutant gene can be passed on to succeeding generations. Scientists have classified the disorders as neurofibromatosis type 1 (NF1) and neurofibromatosis type 2 (NF2). NF1 is the more common type of the neurofibromatoses. In diagnosing NF1, a physician looks for changes in skin appearance, tumors, or bone abnormalities, and/or a parent, sibling, or child with NF1. Symptoms of NF1, particularly those on the skin, are often evident at birth or during infancy and almost always by the time a child is about 10 years old. NF2 is l
Neurofibromatosis (NF) is a genetic neurological disorder that can affect the brain, spinal cord, nerves and skin. Tumors, or neurofibromas, grow along the body’s nerves or on or underneath the skin. Scientists have classified NF into two distinct types: neurofibromatosis type 1 (NF1) and NF2. NF1, formerly known as von Recklinghausen’s NF, is the more common of the types. It occurs in approximately 1 in 4,000 births. NF2, also referred to as bilateral acoustic NF, central NF or vestibular NF, occurs less frequently- 1 in 40,000 births. Occurences of NF1 and NF2 are present among all racial groups and affect both sexes equally. The tumors arise from changes in the nerve cells and skin cells. Tumors also may press on the body’s vital areas as their size increases. NF may lead to developmental abnormalities and/or increased chances of having learning disabilities. Other forms of NF, where the symptoms are not consistent with that of NF1 or NF2, have been observed. A rare form of NF is sc
Neurofibromatosis, pronounced Neuro-fi-bro-ma-to-sis, (NF for short), is a genetic disorder of the nervous system that causes tumors to form on the nerves anywhere in the body at any time. This progressive disorder affects all ethnic races and both sexes equally. NF is one of the most common genetic disorders in the United States, (one in every 3,000 to 4,000 births), even though not many people are familiar with it..
