title: Mucinous ovarian tumors of Mullerian-type: an analysis of 17 cases including borderline tumors and intraepithelial, microinvasive, and invasive carcinomas.
abstract: Mullerian-type mucinous tumors (MMTs) of the ovary are characterized by a papillary architecture similar to that of serous tumors and a content of endocervical-like mucinous epithelium. The latter may be admixed with other mullerian-type epithelia, including those of serous, endometrioid, and squamous types, and indifferent eosinophilic epithelial cells. We analyzed 17 MMTs, including 12 borderline tumors, 2 intraepithelial carcinomas, 2 microinvasive carcinomas, and 1 invasive carcinoma. Fourteen of 16 tumors (88%) with available staging were stage I; the remaining two cases (both borderline) were stage IIa and IIIc. Endometriosis was identified in eight cases (47%). Only two patients (12%) had bilateral tumors, a frequency of bilaterality lower than in previous studies. Five patients (31%) had conservative treatment consisting of a cystectomy or unilateral salpingo-oophorectomy. All patients had a favorable outcome, with no recurrences or disease-related deaths, regardless of the presence of high mitotic index, intraepithelial carcinoma, microinvasion, bilaterality, conservative treatment, or advanced stage. This indolent behavior of MMTs is similar to that previously reported, but additional cases of invasive carcinomas in this category are needed to better define their outcome.
authors.affiliation: Department of Pathology, L'Hôtel-Dieu de Québec, Centre Hospitalier Universitaire de Québec, Laval University, Québec, Canada.
authors.forename: Valérie
authors.initials: V
authors.lastname: Dubé
authors.forename: Michel
authors.initials: M
authors.lastname: Roy
authors.forename: Marie
authors.initials: M
authors.lastname: Plante
authors.forename: Marie-Claude
authors.initials: MC
authors.lastname: Renaud
authors.forename: Bernard
authors.initials: B
authors.lastname: Têtu
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000150:complications / Q000473:pathology* / Q000601:surgery; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004715:Endometriosis / Q000150:complications; D005260:Female; D007839:Functional Laterality; D013509:Gynecologic Surgical Procedures; D006801:Humans; D008875:Middle Aged; D018200:Mixed Tumor, Mullerian / Q000150:complications / Q000473:pathology* / Q000601:surgery; D009367:Neoplasm Staging; D010051:Ovarian Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome