Leydig Cell Tumor in Cryptorchid Testis / 대한비뇨기과학회지

Leydig cell tumors are rare, constituting only 1-3% of all testicular tumors; but they are still the focus of interest due to the difficulties in determining their exact nature and subsequent type of treatment. Generally, there appears to be no association with cryptorchidism, but there have been reports of Leydig cell tumors in cryptorchid testes. Herein, a case of a Leydig cell tumor in cryptorchidism is reported.