Anatomical Variations of Cystic Ducts in Magnetic Resonance Cholangiopancreatography and Clinical Implications
42-year-old female with choledochal cyst involving the cystic duct. (a) Coronal oblique 3D MR cholangiopancreatography shows marked fusiform dilatation of the extrahepatic bile duct (white arrowhead) with abrupt tapering at distal part (white arrow). The cystic duct is elongated and tortuous and showing cystic dilatation at its distal end with wide communication with the CHD. Also note that there was fusiform dilatation of left hepatic duct. (b) Coronal oblique 3D MR cholangiopancreatography shows abnormal union of pancreatobiliary duct with long common channel. : choledochal cyst. GB: gall bladder and CD: cystic duct.