INFLAMMATORY MYOFIBROBLASTIC TUMOR OF THE URINARY BLADDER: TREATMENT AND A TWO-YEAR MONITORING - CASE REPORT/INFLAMATORNI MIOFIBROBLASTNI TUMOR MOKRACNE BESIKE - TERAPIJA I DVOGODISNJI MONITORING - PRIKAZ SLUCAJA

• Published in: Medicinski pregled Vol. 74; no. 1-4; p. 41
• Main Authors: Stojanovic, Stevan, Dimitric, Zarko, Levakov, Ivan, Popov, Mladen, Dajko, Sandra Trivunic, Torbica, Slobodan
• Format: Journal Article
• Language: English
• Published: Drustvo Lekara Vojvodine 01-01-2021
• Subjects: Development and progression; Immunohistochemistry; Tumors
• ISSN: 0025-8105
• DOI: 10.2298/MPNS2102041S

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. Key words: Urinary Bladder Neoplasms; Myofibroma; Cystoscopy; Hematuria; Immunohistochemistry; Diagnosis; Urologic Surgical Procedures Uvod. Inflamatorni miofibroblastni tumor mokracne besike ili pseudotumor benigne je etiologije. Naziv pseudotumor dobio je po tome sto makroskopski gledano imitira infiltrativne tumore mokracne besike. Prvi ikada opisan pseudotumor viden je na plucima. Osamdesetih godina proslog veka je prvi put opisan u mokracnoj besici. Incidencija je izrazito retka. Prikaz slucaja. Prikazujemo slucaj muskarca starosti 46 godina. Radi se o pacijentu koji se javio prvi put u Urgentni centar zbog neprijatnog osecaja pri mokrenju, bezbolne hematurije i izbacivanja krvnih ugrusaka tokom mokrenja. Sprovedena je urgentna dijagnostika te je videna tumorska promena u mokracnoj besici. Sprovedena je i dodatna dijagnostika i operativno lecenje, transuretralna elektroresekcija mokracne besike. Nakon patohistoloske analize dobijen je nalaz inflamatornog miofibroblastnog tumora mokracne besike. Treceg dana hospitalziacije pacijent je otpusten. Na dosadasnjim kontrolnim pregledima pacijent je samo ultrazvucno i cistoskopski pracen. Nisu uoceni recidivi. Zakljucak. Uvidom u dostupnu literaturu uvideli smo da se kod vecine ovakvih slucajeva, nakon transuretralne elektroresekcije mokracne besike, vecina urologa opredeljivala za radikalnije operacije. Dvogodisnjim pracenjem pacijenta dokazali smo da se tumor mokracne besike moze drzati pod kontrolom, bez recidiva, redovnim pracenjem (ultrazvucno i cistoskopski) nakon inicijalno nacinjene transuretralne elektroresekcije mokracne besike. Kljucne reci: karcinomi mokracne besike; miofibrom; cistoskopija; hematurija; imunohistohemija; dijagnoza; uroloske hirurske procedure