There is an infiltrative, circumferential, and intermediate attenuation mass involving the second and third portions of the duodenum. The patient was administered oral contrast, and it is clear that this mass is not obstructing the gastroduodenal outflow. There is a smaller soft tissue mass which extends from the duodenal mass into the right mid abdominal mesentery. There is obstruction of the common bile duct by the duodenal mass, with dilation of the gallbladder. No adenopathy or disease elsewhere in the abdomen or pelvis is present.