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Neurofibromatosis 2 (NF2) is an autosomal dominant disorder characterized by the occurrence of bilateral acoustic neuromas, as well as meningiomas and schwannomas. The gene locus for NF2 resides on chromosome 22q12 and has been cloned recently. Neurilemmomatosis is characterized by multiple cutaneous and spinal neurilemmomas without other signs of NF1 or NF2. Many cases with this disorder include...