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Diagnosis and Classification of Pancreatic and Duodenal Injuries in Emergency Radiology¹

¹ From the Department of Clinical Radiology, Ludwig-Maximilians-University Munich, Nussbaumstrasse 20, D-80336 Munich, Germany. Presented as an education exhibit at the 2007 RSNA Annual Meeting. Received April 3, 2008; revision requested June 17 and received July 1; accepted July 9. All authors have no financial relationships to disclose. Address correspondence to U.L. (e-mail: ulrich.linsenmaier{at}med.uni-muenchen.de).

Pancreatic and duodenal injuries after blunt abdominal trauma are rare; however, delays in diagnosis and treatment can significantly increase morbidity and mortality. Multidetector computed tomography (CT) has a major role in early diagnosis of pancreatic and duodenal injuries. Detecting the often subtle signs of injury with whole-body CT can be difficult because this technique usually does not include a dedicated protocol for scanning the pancreas. Specific injury patterns in the pancreas and duodenum often have variable expression at early posttraumatic multidetector CT: They may be hardly visible, or there may be considerable exudate, hematomas, organ ruptures, or active bleeding. An accurate multidetector CT technique allows optimized detection of subtle abnormalities. In duodenal injuries, differentiation between a contusion of the duodenal wall or mural hematoma and a duodenal perforation is vital. In pancreatic injuries, determination of involvement of the pancreatic duct is essential. The latter conditions require immediate surgical intervention. Use of organ injury scales and a surgical classification adapted for multidetector CT enables classification of organ injuries for trauma scoring, treatment planning, and outcome control. In addition, multidetector CT reliably demonstrates potential complications of duodenal and pancreatic injuries, such as posttraumatic pancreatitis, pseudocysts, fistulas, exudates, and abscesses.

© RSNA, 2008