Aggressive Inflammatory Myofibroblastic Tumor of the Urinary Bladder in Children

Inflammatory myofibroblastic tumor (IMT) of the genitourinary tract is a well-known entity. The majority of the literature characterizes IMT of the bladder as a benign, slowgrowing tumor in children. We present two cases of aggressive IMT. Although rhabdomyosarcoma ismore common, IMT should remain within the differential diagnosis for any bladder mass found in achild or young adult. The diagnosis of IMT is important in preventing unnecessarydiagnosticprocedures and guiding the appropriate treatment