Marcelo Lorenzi Marques
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Gabriel Salum D'Alessandro
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Daher Cezar Chade
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Valéria Pereira Lanzoni
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Samuel Saiovici
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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.
Giant Median Lobe Hyperplasia of the Prostate Mimicking Bladder Tumor: A Case Report
