Testicular Leydig Cell Tumor, also known as interstitial cell neoplasm of testis, is related to lipoid congenital adrenal hyperplasia and leydig cell tumor. An important gene associated with Testicular Leydig Cell Tumor is PABIR3 (PABIR Family Member 3). The drugs Ipilimumab and Nivolumab have been mentioned in the context of this disorder. Affiliated tissues include testis.