True about Colovesical fistula?
Correct Answer: Most commonly presents with pneumaturia
Description: Colovesical fistulaA colovesical fistula is the presence of a communication between the lumen of the colon and that of the bladder, either directly or an intervening abscess cavityCausesDiveiculitis: most common ~ 60%Colorectal cancer (CRC) : ~ 20%Crohn&;s disease: ~ 10%RadiotherapyAppendicitisTraumaClinical presentationRadiographic featuresIn most instances, the diagnosis is suspected clinically due to pneumaturia, faecaluria, recurrent urinary tract infections, or passage of urine rectally.In some cases, it will be first diagnosed radiologically at the time of investigation for the primary diseaseCT scan - Presence of gas within the lumen of the bladder. Contrast may be instilled into the rectum &;on table&; prior to the acquisition of images in order to demonstrate a fistulaFluoroscopy Treatment and prognosis*Surgical resection of the fistula and abnormal segment of bowel is usually required for cure, although in the setting of malignancy this suggests advanced disease (T4) making surgery complex.*In such cases, if palliation only is required then de-functioning colostomy, colonic stent placement or a nephrostomy may be required.(Refer: )
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