Ovarian Hilus Cell Tumor

**Semantic type:** Neoplastic Process

**Definition:** A benign Leydig cell tumor which arises in the hilar area of the ovary.

**Synonyms:** - Hilar Cell Neoplasm - Hilar Cell Tumor of Ovary - Hilar Cell Tumor of the Ovary - Hilar cell tumor - Hilus Cell Neoplasm - Hilus Cell Tumor - Hilus cell tumor - Ovarian Hilar Cell Tumor