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Fig. 16A. —Biliary dilation after Frey's procedure in two patients. Axial CT (A) and coronal reformatted (B) images in 43-year-old man 7 months after Frey's procedure show dilated common bile duct (CBD) (white arrows). There is abrupt cut off of distal CBD (arrowhead, B). Note low density in pancreatic head consistent with surgery (black arrow). No evidence of CBD malignancy was shown on endoscopic sonography and ERCP brushings. CBD stricture was thought to be ischemic in origin.