title: [Malignant vulvar soft tissue myoepithelioma].
abstract: The authors describe a case of malignant vulvar soft tissue myoepithelioma in a 41-year-old woman. Microscopically, epithelioid and spindle cells were located in the myxoid stroma. Tumor cells co-expressed pan-cytokeratin, EMA, and cytokeratin 18, vimentin, protein S100, and smooth muscle actin. The tumor was found to have a very high proliferative activity (Ki-67 was as high as 80%). The disease was fulminant with a fatal outcome 4 months after the occurrence of the first symptoms of the tumor.
authors.forename: M S
authors.initials: MS
authors.lastname: mukhina
authors.forename: N A
authors.initials: NA
authors.lastname: Maksimova
authors.forename: N S
authors.initials: NS
authors.lastname: Safina
authors.forename: I A
authors.initials: IA
authors.lastname: Chizh
mesh_terms: D000328:Adult; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D009208:Myoepithelioma / Q000378:metabolism* / Q000473:pathology*; D009363:Neoplasm Proteins / Q000096:biosynthesis*; D012983:Soft Tissue Neoplasms / Q000378:metabolism* / Q000473:pathology*; D014846:Vulvar Neoplasms / Q000378:metabolism* / Q000473:pathology*
chemical_list: D009363:Neoplasm Proteins