title: Mature cystic teratoma coexisting with clear-cell carcinoma in the ovary.
abstract: Mature cystic teratoma (MCT) is the most common benign ovarian tumor; clear-cell carcinoma (CCC) is a relatively common malignant ovarian tumor in Japan, but there are few reports on the coexistence of MCT and CCC. Here we report a case of simultaneous MCT and CCC in the ovary and review the relevant literature. The patient was a 49-year-old woman. A 5-cm MCT was found in the left ovary on initial gynecological examination, and she was referred to hospital for treatment because it was expanding. Magnetic resonance imaging showed a multilocular cystic tumor 16 × 10 × 9.5 cm in the left ovary, and surgery was performed. The final pathological diagnosis was MCT, endometriotic cyst, clear-cell adenofibroma, clear-cell borderline tumor, and CCC in the left ovary.
authors.affiliation: Japanese Red Cross Society, Kyoto Daiichi Hospital, Kyoto, Japan.
authors.forename: Koki
authors.initials: K
authors.lastname: Shimura
authors.affiliation: Japanese Red Cross Society, Kyoto Daiichi Hospital, Kyoto, Japan.
authors.forename: Mariko
authors.initials: M
authors.lastname: Matsumoto
authors.affiliation: Japanese Red Cross Society, Kyoto Daiichi Hospital, Kyoto, Japan.
authors.forename: Takuya
authors.initials: T
authors.lastname: Sugahara
authors.affiliation: Japanese Red Cross Society, Kyoto Daiichi Hospital, Kyoto, Japan.
authors.forename: Takuro
authors.initials: T
authors.lastname: Yamamoto
authors.affiliation: Japanese Red Cross Society, Kyoto Daiichi Hospital, Kyoto, Japan.
authors.forename: Nozomi
authors.initials: N
authors.lastname: Ogiso
authors.affiliation: Japanese Red Cross Society, Kyoto Daiichi Hospital, Kyoto, Japan.
authors.forename: Yoji
authors.initials: Y
authors.lastname: Urata
authors.affiliation: Japanese Red Cross Society, Kyoto Daiichi Hospital, Kyoto, Japan.
authors.forename: Tomoharu
authors.initials: T
authors.lastname: Okubo
mesh_terms: D002277:Carcinoma / Q000473:pathology*; D062625:Cystadenofibroma / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000473:pathology*; D013724:Teratoma / Q000473:pathology*
keywords: clear-cell adenofibroma; clear-cell borderline tumor; clear-cell carcinoma; endometriotic cyst; mature cystic teratoma