Benign Leydig Cell Tumor

**Semantic type:** Neoplastic Process

**Definition:** A Leydig cell tumor which does not recur or metastasize. Morphologically, there is no evidence of cellular atypia, increased mitotic activity, necrosis, or vascular invasion.

**Synonyms:** - Adenoma, Interstitial - Adenoma, Leydig Cell - Benign Interstitial Cell Neoplasm - Benign Interstitial Cell Neoplasm - Benign Interstitial Cell Tumor - Benign Interstitial Cell Tumor - Benign Leydig Cell Neoplasm - Benign Leydig Cell Neoplasm - Interstitial cell tumor, benign - LEYDIG CELL TUMOR, BENIGN - Leydig cell tumor, benign