Fig. 1. Preoperative CT scan. (A) A non-contrast CT revealed highly attenuated materials in the gallbladder and extra-hyperdense gallstones. (B) An enhanced CT image obtained in the arterial phase demonstrated streaks-like enhancement along the gallbladder wall (arrow). (C) The coronal arterial phase CT showed that the gallbladder (curved arrow) and common bile duct (CBD) (straight arrow) were distended and contained high density fluid. The gallbladder fluid was confirmed as a large amount blood clots and CBD dilatation due to sludge and tiny stones.
