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Primary ovarian carcinoid tumor arising within a mature cystic teratoma

Nageswar Sahu1, Narahari Agasti2, Urmila Senapati1

Affiliacja i adres do korespondencji
Curr Gynecol Oncol 2016, 14 (3), p. 168–173
DOI: 10.15557/CGO.2016.0020
Streszczenie

Primary carcinoid tumor of the ovary in association with a mature cystic teratoma is very rare. Preoperative diagnosis of this tumor is difficult, particularly in the absence of symptoms of carcinoid syndrome. Here, we report a case of a premenopausal woman who underwent operative treatment due to an ovarian mass. The ovary was cystic with a solid mural nodule. Microscopically, the cyst wall revealed features of mature teratoma while the nodule showed features of a low-grade insular carcinoid. Synaptophysin and CD56 were positive. Ki67 index was low. No evidence of primary gastrointestinal or respiratory malignancy was found. The histologic and immunohistochemical characteristics of this tumor, its intimate association with a mature cystic teratoma and the absence of primary malignancy elsewhere were compatible with the diagnosis of a primary ovarian insular carcinoid tumor. This case is reported to raise the awareness of a rare tumor entity among the pathology and gynecologic communities.

Słowa kluczowe
ovary, mature cystic teratoma, primary carcinoid