Fig. 12
From: Gallstones top to toe: what the radiologist needs to know
Axial contrast-enhanced CT of the abdomen. There is gallbladder wall thickening and pericholecystic fluid consistent with acute cholecystitis. There is a defect in the medial gallbladder wall with a hypoattenuating collection within segment 5 of the liver (arrow). Appearances are consistent with gallbladder perforation and hepatic abscess