CASE 163

History: A 55-year-old man presents with abdominal pain.

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

A. Abscess

B. Duodenal hematoma

C. Localized perforation

D. Giant duodenal ulcer

E. Duodenal diverticulum

2. Which of the following is a mucosal defect replacing two thirds of the duodenal bulb?

A. Giant duodenal ulcer

B. Duodenal perforation

C. Duodenal penetration

D. Duodenal diverticulum

3. Where do perforating ulcers most commonly occur?

A. Gastric body

B. Gastric antrum

C. Duodenal bulb

D. Postbulbar duodenum

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