Ovarian Stromal-Leydig Cell Tumor

**Semantic type:** Neoplastic Process

**Definition:** A rare, benign and well circumscribed stromal tumor of the ovary. It is characterized by the presence of a fibrotic stroma with clusters of Leydig cells. The Leydig cells contain crystals of Reinke. Patients may present with virilization.

**Synonyms:** - Ovarian Stromal-Leydig Tumor