Leydig Cell Tumor

**Definition:** Gonadal interstitial or stromal cell neoplasm composed of only LEYDIG CELLS. These tumors may produce one or more of the steroid hormones such as ANDROGENS; ESTROGENS; and CORTICOSTEROIDS. Clinical symptoms include testicular swelling, GYNECOMASTIA, sexual precocity in children, or virilization (VIRILISM) in females.

**Tree numbers:** - C04.557.475.750.847.249 - C04.588.322.762.500.249 - C04.588.945.440.915.500.249 - C12.100.500.260.937.500.249 - C12.200.294.260.937.500.249 - C12.200.758.409.937.500.249 - C12.900.619.937.500.249 - C19.344.762.500.249 - C19.391.829.782.500.249

**Synonyms:** - Interstitial Cell Tumor