Primary ovarian carcinoid in mature cystic teratoma: A rare entity

Primary ovarian carcinoids are rare, accounting for 0.3% of all carcinoid tumors; however, carcinoid tumors metastatic to the ovary are common. A majority of primary ovarian carcinoids occur in association with mature cystic teratoma. In this paper, we present a case of carcinoid tumor developing in a mature cystic teratoma in a 50-year-old female.