Abstract
A 77-year-old woman admitted for liver dysfunction was found in abdominal ultrasonography to have a 16×9mm polyp in the gallbladder. A color doppler ultrasonography suggested that the polyp had a pulsating blood flow. Abdominal enhanced CT enhanced the lesion, confirmed by angiography showing tumor staining. We conducted open cholecystectomy because it was difficult to differentiate this lesion from cancer. Pathologi-cally, the polyp was inflammatory with rich vessels in the interstitium. This case shows that measurement of maximum blood flow with the ultrasonic doppler flowmeter, is useful. Cholesterosis in the gallbladder mucosa is likely related to pathogenesis of an inflammatory polyp.
