title: Mixed signet-ring and transitional cell carcinoma of the bladder. Report of a case.
abstract: A case of transitional cell carcinoma of the bladder displaying prominent signet-ring cell features is reported. Despite combined therapy, the patient died within a few months of the diagnosis, thus confirming the poor prognosis of this tumor. We understand this entity could be considered as an example of neoplastic-associated metaplasia and therefore propose that it should be distinguished from genuine adenocarcinoma.
authors.affiliation: Servicios de Anatomía Patológica Urología, Hospital Civil de Bilbao, Spain.
authors.forename: J I
authors.initials: JI
authors.lastname: López
authors.forename: J C
authors.initials: JC
authors.lastname: Angulo
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging / Q000473:pathology*; D000368:Aged; D000369:Aged, 80 and over; D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008297:Male; D011859:Radiography; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*