title: Mucinous cystadenocarcinoma of the retroperitoneum: report of a case.
abstract: Retroperitoneal mucinous cystadenocarcinomas are extremely rare. A 40-year-old Japanese woman was found to have a retroperitoneal mucinous cystadenocarcinoma of ovarian type. Both ovaries were normal. Concentrations of carcinoembryonic antigen and carbohydrate antigen 19-9 in the cyst fluid were extremely high (810,000 ng/ml and 8,082,000 IU/l, respectively). The tumor varied from benign to borderline and malignant in microscopic appearance, and the lesion was composed of mesothelium-like cells. The histologic and immunohistochemical findings suggested that the tumor developed from mucinous metaplasia of the coelomic mesothelium.
authors.affiliation: Department of Surgery, Tsuruoka Municipal Shonai Hospital, Yamagata, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: T
authors.initials: T
authors.lastname: Mishina
authors.forename: D
authors.initials: D
authors.lastname: Ishizuka
authors.forename: M
authors.initials: M
authors.lastname: Fukase
authors.forename: Y I
authors.initials: YI
authors.lastname: Matsubara
mesh_terms: D000328:Adult; D018282:Cystadenocarcinoma, Mucinous / Q000175:diagnosis*; D005260:Female; D006801:Humans; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*