title: Urachal signet-ring cell carcinoma, a rare variant of vesical adenocarcinoma: incidence and pathological criteria.
abstract: Of 715 cases of vesical tumors reviewed 18 adenocarcinomas were selected for further study, 5 of which fulfilled all criteria of urachal origin. Herein is reported 1 rare case of such a carcinoma of the signet-ring cell type and the morphological criteria of this variant are discussed briefly. After undergoing radical cystectomy and ureterosigmoidostomy the patient has been free of recurrent tumor or metastasis for 6 years.
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000196:embryology / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D014497:Urachus; D001749:Urinary Bladder Neoplasms / Q000196:embryology / Q000473:pathology* / Q000601:surgery