[A case of congenital hourglass bladder].

In congenital hourglass bladder, the intravesical lumen is horizontally divided into upper and lower compartments and the bladder looks like an hourglass. Most patients suffering from this disorder are adults. It occurs predominantly in men. The main symptom is inflammation of the bladder. Diagnosis has usually been made by cystography and endoscopy. The patient we report herein was a 45-year-old woman who visited us mainly due to symptoms of vesical inflammation. We performed DIP, CT, MRI, cystography and cystoscopy, and diagnosed the case as congenital hourglass bladder based on the images that were obtained. We report and discuss this case, with some information from the literature, since we believe that this is the first case of CT and MRI being performed for this condition.