title: Perineurioma: a benign peripheral nerve tumor.
abstract: A unique benign peripheral nerve tumor, called a perineurioma, is described in this report. Light and electron microscopy and immunohistochemistry indicate that this tumor was derived from the perineurial cell. We discuss the ultrastructure, histogenesis, and management of this neoplasm.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D010524:Peripheral Nervous System Neoplasms / Q000032:analysis / Q000473:pathology* / Q000648:ultrastructure; D009418:S100 Proteins / Q000032:analysis; D014459:Ulnar Nerve / Q000473:pathology / Q000648:ultrastructure
chemical_list: D009418:S100 Proteins