title: Intracerebral neurinomas in a case of von Recklinghausen's disease (neurofibromatosis).
abstract: We report the third case of intracerebral neurinoma in a patient with von Recklinghausen's disease, who died of recurrent subdural hematomas after head injury. A total of ten tumors were found in the brain. Both by histological and ultrastructural standards the multiple tumors resembled neurinomas. The pattern of positivity for S-100 and myelin basic protein indicated the Schwann cell origin of the tumors. The ultrastructural findings indicated Schwann cells and numerous areas showing a well defined basement membrane surrounding spindle-shaped neoplastic cells and other areas lacking basement membrane with Schwann cells embedded in collagen. The present case may be categorized as a mixed form of peripheral and central neurofibromatosis. It seems safe to assume that perivascular nerves are the site of origin of the tumors.
mesh_terms: D001921:Brain / Q000473:pathology; D001930:Brain Injuries / Q000473:pathology; D001932:Brain Neoplasms / Q000473:pathology*; D006408:Hematoma, Subdural / Q000473:pathology; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D004676:Myelin Basic Protein / Q000378:metabolism; D009456:Neurofibromatosis 1 / Q000473:pathology*; D009418:S100 Proteins / Q000378:metabolism; D014057:Tomography, X-Ray Computed
chemical_list: D004676:Myelin Basic Protein; D009418:S100 Proteins