Bladder Outlet Obstruction Secondary to Obstructed Foley Catheter Discovered on PET/CT

Unexpected findings are not infrequently encountered during nuclear imaging; genitourinary abnormalities are more likely in those studies (eg, bone and renal scans) that involve significant urinary handling of administered radiopharmaceutical. A case of acute renal insufficiency secondary to unsuspected bladder outlet obstruction from an obstructed Foley catheter identified on positron emission tomography/computed tomography (PET/CT) is presented.