An unusual cause of urinary retention in a young female: a case report.

Inflammatory myofibroblastic tumors are commonly seen in young adults and adolescents and commonly present with painless hematuria. We report a case of a 38-year-old woman who presented to us with urinary retention due to a prolapsing tumor mass from the urethra, which was discovered to be an inflammatory myofibroblastic tumor arising from the bladder base and involving the bladder neck. The patient underwent a successful transurethral resection of the tumor and at 6-month follow-up was continent and symptom-free.