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Medical Dictionary

neurofibromatosis

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noun neu·ro·fi·bro·ma·to·sis \-fī-ˌbrō-mə-ˈtō-səs\

Medical Definition of neurofibromatosis

plural neurofibromatoses \-ˌsēz\play

  1. 1 also neurofibromatosis type 1 or neurofibromatosis 1 :  an inherited developmental disorder characterized especially by brown spots on the skin that are typically present at birth, neurofibromas of peripheral nerves, and deformities of subcutaneous tissues and bone—abbreviation NF, NF-1; called also ,

  2. 2 also neurofibromatosis type 2 or neurofibromatosis 2 :  an inherited disorder characterized by bilateral acoustic neuromas developing in childhood or early adulthood that are typically accompanied by other nonmalignant tumors of the central nervous system—abbreviation NF, NF-2 Both types of neurofibromatosis are inherited as an autosomal dominant trait requiring that one parent pass on a copy of the defective gene on a chromosome other than a sex chromosome. Type 1 is much more common than type 2.




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