Figure 11b.  Pancreatic metastasis from mucinous colon carcinoma in a 34-year-old woman. (a) MR cholangiogram demonstrates obstruction of the intrapancreatic segment of the bile duct (arrow) caused by a pancreatic metastasis. Note the dilated gallbladder (G). Enlarged lymph nodes with high signal intensity (arrowheads) represent metastases from mucinous colon carcinoma. (b) Endoscopic retrograde cholangiogram helps confirm the abrupt obstruction of the intrapancreatic bile duct (arrow) and the proximal bile duct dilatation.