Coexistence of inflammatory pseudotumour and pseudomembranous cystitis: a histopathological surprise.

We report a case of inflammatory pseudotumour (IP) and pseudomembranous cystitis (PC) in a young female patient who presented with gross haematuria and clot retention. Cystoscopy revealed a single glistening, polypoid growth of approximately 3 cm × 2.5 cm at the left lateral wall and the trigone of the urinary bladder. She was treated by transurethral resection of bladder mass. The patient's symptoms significantly improved after surgery. Histopathology report revealed haphazardly arranged myofibroblasts, fibroblasts and histiocytes and discrete areas of non-keratinising squamous metaplasia that was suggestive of IP coexistence with PC. She was doing well during the follow-up period of 12 months. Cystoscopy taken at 3 monthly intervals did not show any evidence of tumour recurrence.