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  • Title: CT and MRI findings in pancreatic trauma in children and correlation with outcome.
    Author: Ibrahim A, Wales PW, Aquino MR, Chavhan GB.
    Journal: Pediatr Radiol; 2020 Jun; 50(7):943-952. PubMed ID: 32172401.
    Abstract:
    BACKGROUND: There are limited published data on pancreatic trauma imaging in children. OBJECTIVE: To present our experience using computed tomography (CT) and magnetic resonance (MR) imaging of pancreatic trauma in children and to correlate the imaging grade of pancreatic injury with management and outcome. MATERIALS AND METHODS: A retrospective cohort study of children with pancreatic injury presenting between Jan. 1, 2000, and Dec. 31, 2016, was performed. Patient charts were reviewed to note demographics, the mechanism of injury, associated abdominal injuries, management and outcome. All imaging was rereviewed by two radiologists blinded to clinical and laboratory information, and pancreatic injuries were graded according to the American Association for the Surgery of Trauma (AAST). RESULTS: Of 3,265 patients presented as trauma team activations during the study period, only 28 (0.86%) children (19 boys, 9 girls; mean age: 7.14 years; age range: 1-15 years) had pancreatic injury. Of the available 27 CTs of the abdomen, 26 were performed on the day of trauma. Associated injuries were seen in 25/27 children, most frequently in the liver and lung, 16 (59.2%) each. There were 5 (19%) Grade I, 9 (33%) Grade II, 8 (30%) Grade III and 3 (11%) Grade IV. No patients had Grade V injury. No pancreatic parenchymal injury was identified in 2 (7%) patients with isolated fluid around the pancreas and mesentery. The pancreatic duct was visible in all 10 children (days: 0-330, median days: 41 post-trauma) who had MRI. Eight of these children, who had Grade III/IV injuries on CT and confirmed pancreatic duct injury on endoscopic retrograde cholangiopancreatography (ERCP) or surgery, showed either signal intensity difference in pancreatic parenchyma and/or caliber difference in the pancreatic duct proximal and distal to the injury site. Two patients died because of multiorgan injuries, 9 patients (mainly with Grade III and IV injuries) underwent surgery and/or ERCP, and 16 patients were managed conservatively. AAST grading of pancreatic injury on CT correlated with type of management (P=0.0001) with most of the Grade III and IV injuries treated with intervention and/or surgery while all of the Grade I and II injuries were treated conservatively. CONCLUSION: Pancreatic injury is rare in children but often associated with other organ injuries most frequently involving the liver and lung. CT grading of injury correlates with management and guides intervention and/or surgery versus conservative treatment. MRI is useful for assessing pancreatic duct injury by demonstrating the pancreatic duct directly and/or secondary changes like signal intensity difference in pancreatic parenchyma and caliber difference in the pancreatic duct.
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