distinct forms are known: NF1 and NF2. One baby in every four thousand is born in the

United States with NF1. It is one of the most common genetic disorders, affecting some

one hundred thousand americans. NF2 is less common and occurs in only one and every

forty thousand births. In both forms of NF severity of symptoms vary greatly.

The effects can be severely disabling, mildly disfiguring or can even go undetected.

Several other names for this disorder have been used in the past but recent advancements

in understanding the disorder made some of those terms obsolete.

NF1 was previously known as peripheral neurofibromatosis, or von Recklinghouasen’s

disease after the doctor who first described it in 1882. NF2 was called bilateral acoustic

nuerofibromatosis, central neurofibromatosis, or vestibular schwannoma.

NF is found in every racial and ethnic group throughout the world and

affects both sexes equally. Both neurofibromatosis1 and neurofibromitosis2 are caused

by abnormal genes. This disease cannot be "caught" from someone who has it already. .

A common early sign of NF1 is six or more ta

Researchers have found the gene for NF1 on the 17th chromosome, and the gene for NF2

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