Multiseptate gallbladder: diagnostic value of MR cholangiography and ultrasonography.

Multiseptate gallbladder is a rare congenital malformation. We present a case that emphasizes the importance of ultrasonography and magnetic resonance imaging. Ultrasound examination of the abdomen showed multiple linear internal echoes consistent with multiple septa crossing the entire gallbladder lumen, creating a honeycomb appearance. Magnetic resonance cholangiopancreatography showed a grapelike cluster of the whole gallbladder.