title: [Dermal myxoma of nerve sheats (neurothecoma)].
abstract: The histological study of a painful cutaneous nodule located in the interscapular region, which had been present for 20 years in a 59-year old male patient has show typical features of dermal myxoma of the nerve sheaths. This was a lobulated myxomatous tumour with fusiform and dendritic cells plus a few epithelioid and multinucleate cells. Immunostaining was positive for the S100 protein and negative for factor XIIIa and EMA. These data suggest that this tumour was of schwannian origin.
authors: Clinique de Dermatologie, Hospital da Universidade, Coimbra, Portugal.
authors: O
authors: O
authors: Tellechea
authors: J P
authors: JP
authors: Reis
authors: A P
authors: AP
authors: Baptista
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009186:Myelin Sheath; D009232:Myxoma / Q000473:pathology*; D009455:Neurofibroma / Q000473:pathology; D010524:Peripheral Nervous System Neoplasms / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*
vernacular_title: Myxome dermique des gaines nerveuses (neurothécome).