title: A case of perineurioma with prominent myxoid changes.
abstract: A perineurioma with prominent myxoid changes is presented. The patient, a 41 year-old woman, presented with a small skin nodule on her back. Light microscopy revealed subtle cellular whorls within a myxoid background. Immunohistochemistry showed epithelial membrane antigen positivity. In contrast, S-100 protein, common leukocyte antigen, vimentin and AE1-AE3 cytokeratin were negative.
authors.affiliation: Servico de Anatomia Patológica. Hospital Civil de Bilbao, Spain.
authors.forename: J I
authors.initials: JI
authors.lastname: Lopez
authors.forename: J M
authors.initials: JM
authors.lastname: Elizalde
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D009232:Myxoma / Q000473:pathology*; D009442:Neurilemmoma / Q000175:diagnosis / Q000473:pathology*; D009455:Neurofibroma / Q000175:diagnosis / Q000473:pathology*; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis / Q000473:pathology*; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology