/testicular Leydig cell tumor

testicular Leydig cell tumor

Rare Disease

MONDO:0003124

Also Known As

Leydig cell neoplasm of testisLeydig cell neoplasm of the testisLeydig cell tumor of testisLeydig cell tumour of testistesticular Leydig cell neoplasmtesticular Leydig cell tumortestis Leydig cell tumortestis Leydig cell tumourLeydig cell tumor of the testisLeydig cell tumour of the testis

Definition

A sex cord-stromal tumor that arises from the testis and is characterized by the presence of cells that resemble the successive stages of development of Leydig cells. It usually presents as a painless testicular mass. Gynecomastia is present in approximately thirty percent of the cases. Libido may be decreased. In children, precocious puberty may be present. A minority of cases exhibit malignant characteristics.