PMC5671485_01
Left pane:plain AP radiograph of chest and abdomen with dilated loops of bowel. Central pane:plain left lateral decubitus radiograph of abdomen with dilated bowel loops and no evidence of pneumoperitoneum. Right pane:sequential AP radiograph of abdomen showing fixed dilated "sentinel" loops.
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F1
Serial abdominal radiographs showed bowel dilation, which appeared fixed without evidence of pneumatosis or free intraperitoneal air (Figure 1).