Ovarian Thecoma

**Semantic type:** Neoplastic Process

**Definition:** A stromal tumor that arises from the ovary and is characterized by the presence of cells that contain lipid and resemble theca cells. The vast majority of cases are benign.

**Synonyms:** - Ovarian Theca Cell Neoplasm - Ovarian Theca Cell Tumor - Theca Cell Neoplasm of Ovary - Theca Cell Neoplasm of the Ovary - Theca Cell Tumor of Ovary - Theca Cell Tumor of the Ovary - Thecoma of Ovary - Thecoma of the Ovary