title: Leydig cell tumor and metachronous Leydig cell hyperplasia: a case associated with gynecomastia and elevated urinary estrogens.
abstract: We report a case of unilateral Leydig cell tumor associated with gynecomastia and elevated urinary estrogens. Nine years after orchiectomy urinary estrogens became elevated and Leydig cell hyperplasia but no distinct tumor was identified in the remaining contralateral testicle.
mesh_terms: D000328:Adult; D004967:Estrogens / Q000652:urine*; D006801:Humans; D006965:Hyperplasia; D007984:Leydig Cell Tumor / Q000150:complications / Q000473:pathology* / Q000601:surgery / Q000652:urine; D007985:Leydig Cells / Q000473:pathology*; D008297:Male; D009919:Orchiectomy; D013736:Testicular Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery / Q000652:urine
chemical_list: D004967:Estrogens