Inflammatory myofibroblastic tumor of the urinary bladder: treatment and a two-year monitoring - case report

Introduction. Inflammatory myofibroblastic tumor of the bladder or inflammatory pseudotumor is benign in nature. It is also known as a pseudotumor, because it macroscopically mimics infiltrative tumors of the bladder. The first inflammatory pseudotumor ever described was found in the lungs. In the 80s of the last century, it was first described in the urinary bladder. Its etiology is unknown and the incidence is extremely rare. Case Report. We present a case of a 46-year-old man who came to the Emergency Center for the first time due to an unpleasant feeling when urinating, painless hematuria and appearance of blood clots during urination. An urgent diagnosis revealed a tumor mass in the bladder. Additional diagnostics and surgical treatment was performed by transurethral electroresection of the urinary bladder. After the histopathological examination, an inflammatory myofibroblastic tumor of the bladder was diagnosed. The patient was discharged on the third day of admission. On control examinations, the patient underwent only cystoscopy and ultrasonography. No recurrences were observed. Conclusion. A review of the available literature showed that in such cases, after transurethral resection of bladder tumor, most urologists opted for more radical surgical procedures. After a two-year follow-up, we proved that a tumor of the bladder can be kept under control after transurethral resection of bladder tumor, without recurrence, by regular monitoring using ultrasonography and cystoscopy.