Primary mucinous adenocarcinoma of the bladder with signet-ring cells: case report

• Autor(a) principal: Marques,Marcelo Lorenzi
• Data de Publicação: 2007
• Outros Autores: D'Alessandro,Gabriel Salum, Chade,Daher Cezar, Lanzoni,Valéria Pereira, Saiovici,Samuel, Almeida,Cláudio José Ramos de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: São Paulo medical journal (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802007000500011
• topic: Urinary bladder; Urinary bladder neoplasms; Mucinous adenocarcinoma; Immunohistochemistry; Signet ring cell carcinoma

CONTEXT: Primary adenocarcinomas of the bladder are uncommon and usually occur by contiguity with or hematogenic dissemination of other adenocarcinomas such as colorectal, prostate and gynecological tract carcinomas. Mucinous and signet-ring cell histological patterns are even rarer and it is often difficult to morphologically distinguish them from metastatic colorectal adenocarcinoma. CASE REPORT: We present and discuss a rare case of primary mucinous adenocarcinoma of the bladder with signet-ring cells in a 57-year-old male patient. Other primary sites for the tumor had been excluded and, in the absence of digestive tract tumor and for confirmation that it was a primary bladder tumor, an immunohistochemistry study was performed.