title: Malignant feminizing Leydig cell tumor.
abstract: A patient with a feminizing malignant Leydig cell tumor is presented. Hormonal assays revealed increased production of prolactin, estradiol, and total estrogens. Eleven years after the onset of his disease he remains clinically well.
mesh_terms: D000368:Aged; D004958:Estradiol / Q000378:metabolism; D004967:Estrogens / Q000378:metabolism; D005262:Feminization / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007984:Leydig Cell Tumor / Q000150:complications / Q000378:metabolism / Q000473:pathology*; D008297:Male; D011388:Prolactin / Q000378:metabolism; D013736:Testicular Neoplasms / Q000150:complications / Q000378:metabolism / Q000473:pathology*
chemical_list: D004967:Estrogens; D004958:Estradiol; D011388:Prolactin