title: [Gynecomastia and cancer of the bladder: an ectopic secretion of chorionic gonadotropin hormone].
abstract: Among the paraneoplastic endocrine syndromes, gynecomastia induced by an ectopic production of human chorionic gonadotrophin remains infrequent. The authors report the case of a fifty-year-old man presenting with a bilateral gynecomastia which had been evolving over three months. The etiological investigation was rapidly guided by a macroscopic hematuria. Intravenous nephro-urotomographies visualized a filling defect in the bladder, and a grade III stage A urothelial carcinoma was completely resected cystoscopically, leading to progressive disappearance of the gynecomastia. Hormonal investigation revealed an ectopic production of HCG, inducing hyperestrogenia.
mesh_terms: D006063:Chorionic Gonadotropin / Q000378:metabolism*; D006177:Gynecomastia / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009384:Paraneoplastic Endocrine Syndromes / Q000150:complications* / Q000175:diagnosis; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000378:metabolism*
chemical_list: D006063:Chorionic Gonadotropin
vernacular_title: Gynécomastie et cancer de la vessie: mise en évidence d'une sécrétion ectopique d'hormone gonadotrophine chorionique.