Fig. 12
Acute perforated diverticulitis in a 67-year-old female patient presented with acute abdominal pain. CT abdomen and pelvis images following water enema and intravenous contrast injection. a Axial image showing sigmoid wall thickening with focal mural defect (yellow circle). b Coronal and c sagittal images, showing gas-containing abscess (white circle), extra luminal air (arrows), and related extensive fat standing (arrowheads)