Interstitial Leydig cell tumor of testis.
D002908:Chronic Disease; D006177:Gynecomastia / Q000209:etiology / Q000473:pathology; D006801:Humans; D007984:Leydig Cell Tumor / Q000150:complications / Q000473:pathology*; D007989:Libido; D008297:Male; D008875:Middle Aged; D013736:Testicular Neoplasms / Q000150:complications / Q000473:pathology*; D013737:Testis / Q000473:pathology