Fig. 4
From: The prevalence of circumportal pancreas as shown by multidetector-row computed tomography
A 45-year-old male patient with pancreatic head cancer, IPMN and circumportal pancreas. a The arterial phase of MDCT shows a hypoattenuating mass in the anterior portion of the pancreatic head, consistent with pancreatic cancer (CA). A cystic mass is seen in the posterior portion of the pancreatic head, representing pancreatic IPMN (IPMN). b MRCP shows a multilocular cystic mass, consistent with IPMN (black arrow). Obstruction of the main pancreatic duct by pancreatic head cancer is demonstrated (white arrow). c The portal venous phase of MDCT above the level of the spleno-portal junction shows encasement of the main portal vein, representing circumportal pancreas. Arrow indicates an aberrant pancreatic tissue. Dilatation of the main pancreatic duct is seen. d Coronal reformatted image obtained from the portal venous phase shows an aberrant pancreatic tissue above the splenoportal confluence (arrow). e Intraoperative finding. An aberrant pancreatic tissue is noted behind the main portal vein (arrow). Ph = pancreatic head. Pb = pancreatic body. MPV = main portal vein. SpV = splenic vein. PHA = proper hepatic artery