Malignant Sex Cord-Stromal Tumor

**Semantic type:** Neoplastic Process

**Definition:** A gonadal sex cord-stromal tumor with malignant characteristics. It includes the poorly differentiated ovarian Sertoli-Leydig cell tumor, malignant ovarian granulosa cell tumor, malignant ovarian steroid cell tumor, and malignant ovarian thecoma.

**Synonyms:** - STROMAL TUMOR, GONADAL, MALIGNANT - Sex Cord Stromal Tumor, Malignant