Figure 3.

Imaging findings before the second surgery and retrospectively reviewed computed tomography finding before the first surgery. A: Computed tomography (CT) taken 11 mo after the first surgery showed enhanced inferior bile duct wall (white arrow) and slightly enhanced tumor within the duct; B: Cholangioscopy revealed a papillary tumor in the remaining inferior bile duct; C: Retrospective review of the CT images before the first surgery revealed enhanced inferior bile duct wall (white arrow) only on the delayed phase.