title: [A case of malignant degeneration of the walls of an epithelial coccygeal cyst].
authors.forename: P M
authors.initials: PM
authors.lastname: Lavreshin
authors.forename: I E
authors.initials: IE
authors.lastname: Vartanov
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000209:etiology* / Q000601:surgery; D002908:Chronic Disease; D017577:Cutaneous Fistula / Q000150:complications* / Q000601:surgery; D003560:Cysts / Q000150:complications* / Q000601:surgery; D004848:Epithelium / Q000601:surgery; D006801:Humans; D008297:Male; D012445:Sacrococcygeal Region / Q000601:surgery*; D012878:Skin Neoplasms / Q000209:etiology* / Q000601:surgery