Small cell type neuroendocrine carcinoma of the bladder is a rare and aggressive tumour associated with poor prognosis. It often presents at a late stage than urothelial carcinoma of the bladder and comprises less than 1% of the bladder malignancies.

We report a case of 72 year old male diagnosed with a 5 x 2.8 cm mass in urinary bladder at anterior and left lateral wall of urinary bladder. He underwent surgery – a radical cystoprostactectomy with standard lymph node dissection. The histomorphological report showed poorly differentiated carcinoma in favor of small cell neuroendocrine carcinoma showing perineural invasion and metastatic carcinoma in lymph node.

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Dr Mamta Chaudhary

Resident Pathology