Primary mucinous adenocarcinoma of the bladder with signet-ring cells
case report
Keywords:
Urinary bladder, Urinary bladder neoplasms, Mucinous adenocarcinoma, Immunohistochemistry, Signet ring cell carcinomaAbstract
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 diffi cult 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 confi rmation that it was a primary bladder tumor, an immunohistochemistry study was performed.
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References
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