Gallbladder dilatation with stones and sludge in the gallbladder fundus. Gallbladder wall thickening, areas of increased and decreased enhancement, and irregularity with multiple areas of discontinuity. Several small contained extraluminal collections which project from defects in the gallbladder wall. No intraluminal or intramural gas. Mild associated pericholecystic inflammation. Few vague ill-defined low-attenuation areas along the anterior aspect of segment IVB/V, which are likely related to focal fat or inflammation.