Multicystic urothelial carcinoma of the bladder with gland-like lumina and with signet-ring cells. A case report.
We present the case of 80-year-old male with superficial papillary urothelial carcinoma of the urinary bladder with striking multicystic architecture with a combination of features of urothelial carcinoma with gland-like lumina, with signet-ring cell differentiation and microcystic pattern. However, the tumor shared the morphologic features of several variants of urothelial carcinoma, the most important differential diagnosis covered so-called florid Brunneriosis, cystitis cystica, and primary adenocarcinomas of the urinary bladder.
Alvarado-Cabrero
Isabel
I
Department of Pathology, Mexican Oncology Hospital, Instituto Mexicano del Seguro Social, Mexico City, Mexico. isa98@prodigy.net.mx
Pérez-Montiel
Delia
D
Hes
Ondrej
O