Fig. 3
From: Gastrointestinal perforation: clinical and MDCT clues for identification of aetiology
75-year-old patient with oesophageal intramural rupture. a Axial unenhanced image demonstrates blurring of paraoesophageal fat, a double air-filled lumen and an interposed diaphragm (arrow) consistent with a flap. b Axial and (c) sagittal unenhanced images following oral contrast administration demonstrate contrast at the dependent part of the lumen (*) and a submucosal curvilinear collection of gas (arrowhead) better demonstrated on the sagittal plane (open arrow), giving the oesophagus a double-barreled appearance