CASE 113
History: A 55-year-old woman presents with vomiting and weight loss.
1. What should be included in the differential diagnosis of the imaging finding shown in Figure A? (Choose all that apply.)
2. What is the most common cause of gastric outlet obstruction?
3. Which of the following statements regarding gastric outlet obstruction is false?
A. Caustic ingestion frequently leads to gastric outlet obstruction.
B. Transpyloric prolapse of gastric mucosa is usually asymptomatic.
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