ENTEROVESICAL FISTULA SECONDARY TO CROHN'S DISEASE MIMICKING BLADDER TUMOR

Introduction: Although most fistulas in Crohn's disease are perianal or enterocutaneous, a small portion involves the bladder and urinary system. We describe enterovesical fistulas in a patient with Crohn's disease that presented exclusively as urinary symptoms mimicking bladder tumor. A 55 years-old man presented with lower urinary tract symptoms to our clinic. Ulrasonographic examination showed a normal upper urinary tract and 4 cm papillary bladder tumor. TUR-T was performed and an enterovesical fistula was noticed during operation. Patient underwent abdominal exploration and partial resection of the ileum, ileostomy, and primary bladder repair was performed. Urologic manifestations must be recognized of fistulizing Crohn's disease and urologist should be aware that Crohn's disease may involve the bladder as inflammatory tumor.