Granulosa cell tumor arising in an ovary with mature teratoma.

Granulosa cell tumor (GCT) with synchronous mature teratoma is extremely rare and only eight cases are documented in the literature. GCT is low-grade malignancy and need a close follow up for recurrences which may be late. We report a case of GCT and mature teratoma occurring synchronously in the same ovary in a perimenopausal woman.