Inflammatory Myofibroblastic Tumor of Bladder

Abstract

Inflammatory myofibroblastic tumor (IMT) is a rare benign lesion found in many locations throughout the body and genitourinary tract. In bladder, being very uncommon, it arises from submucosal stroma as a polypoidal growth, and is easily mistaken for a malignant neoplasm-both clinically and radiologically. Essential criteria for the diagnosis of IMT are spindle myoepithelial cell proliferation and lymphoplasmacytic infiltrate. Here, we report a case of a 29-year-old male who presented with painless gross hematuria for 3 days. The patient underwent transurethral resection of the tumor and the final pathological diagnosis was IMT of the bladder.