CASE 138

History: A 3-year-old boy presents with vomiting.

1. What should be included in the differential diagnosis of the imaging finding shown in Figure A? (Choose all that apply.)

A. Annular pancreas

B. Duodenal hematoma

C. Retroperitoneal mass

D. Pancreatic pseudocyst

E. Duodenal intraluminal diverticulum

2. Which of the following patterns is diagnostic of a duodenal hematoma on CT scan?

A. Grossly thickened folds

B. Retroperitoneal stranding

C. “Coiled spring” appearance

D. Asymmetric ovoid intramural mass

3. What is the most common cause of a duodenal hematoma?

A. Trauma

B. Coagulation disorder

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