Intestinal Injuries Missed by Computed Tomography

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Abstract
Isolated intestinal injuries are frequently difficult to diagnose using only physical examination and routine laboratory studies. Between 1980 and 1988, ten patients were identified who had intestinal injuries and had computed tomographic (CT) scans before operation. For none of these scans was the initial reading considered diagnostic of intestinal injury. All patients came to laparotomy from 2 hours to 3 days following injury, and no patient died because of missed intestinal injury. Retrospective review of the scans revealed two to be diagnostic of intestinal perforation with free intraperitoneal air or extravasated contrast. The remaining eight scans had findings suggestive of injury. However, six additional patients had similar suggestive findings and had no evidence of intestinal injury. One patient with missed duodenal injury had not been given gastrointestinal contrast. Computed tomographic findings of intestinal trauma may be subtle or nonspecific and require optimal technique and care in interpretation. The timely treatment of this injury continues to rely on a high index of clinical suspicion and serial examinations by an experienced surgeon.