Figure 2.

Sagittal image of a CT scan during the portal phase showing distended gallbladder inferior to the liver with “whirl sign” involving the cystic pedicle and “beak sign” with the distended gallbladder tapering at the gallbladder neck.

Sagittal image of a CT scan during the portal phase showing distended gallbladder inferior to the liver with “whirl sign” involving the cystic pedicle and “beak sign” with the distended gallbladder tapering at the gallbladder neck.