A rare case of small cell carcinoma of urinary bladder in a bladder diverticulum: Case report and review of literature

Abstract

Small cell carcinoma of the urinary bladder (SCCB) is a rare and aggressive non-urothelial tumour of the urinary bladder. It represents neuro endocrine type of malignancy, being diagnosed on histopathology and immuno histo chemistry. Bladder diverticulum tumours are rare and present with early lamina propria invasion. Furthermore, the risk of bladder perforation is high during resection due to the lack of muscle. Thus, these tumours have a risk of being under-staged and have a poor prognosis. Till now, very few cases have been reported of SCCB in bladder diverticulum. Multi-modality management in the form of combined chemotherapy and surgery is required for the optimal management. We report this rare case and review the literature for the management of SCCB in bladder diverticulum.

Keywords

• Bladder diverticular tumour
• immunohistochemistry
• neoadjuvant chemotherapy
• small cell carcinoma of urinary bladder