Ovarian Sex Cord-Stromal Tumor

**Semantic type:** Neoplastic Process

**Definition:** A benign or malignant neoplasm that arises from the ovary and is composed of granulosa cells, Sertoli cells, Leydig cells, theca cells, and fibroblasts. Representative examples include thecoma, fibroma, Sertoli cell tumor, and granulosa cell tumor.

**Synonyms:** - Ovarian Sex Cord-Stromal Neoplasm - Ovarian stromal tumor - Sex Cord-Stromal Neoplasm of Ovary - Sex Cord-Stromal Neoplasm of the Ovary - Sex Cord-Stromal Tumor of Ovary - Sex Cord-Stromal Tumor of the Ovary