Urothelial neoplasms are a heterogeneous group of lesions, of which urothelial carcinoma is known for its divergent differentiation. Although majority of tumors are transitional cell carcinomas, the morphological spectrum of bladder cancer has expanded to include many new variants. The importance of recognition of these variants lies in the diagnostic, prognostic and therapeutic considerations that may occur as a result of a particular diagnosis. One such variant is micropapillary urothelial carcinoma [MPC]. Micropapillary carcinoma is an extremely rare but aggressive variant of urothelial carcinoma. The presence of this carcinoma should alert the urologists of its high grade and stage. We report a new case of bladder MPC in a 55 year old male and highlight the significance of recognizing this aggressive tumor.

Keywords: Micropapillary, urothelial carcinoma