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.)

A. Primary adenocarcinoma

B. Metastatic carcinoma

C. Peptic ulcer disease

D. Gastric volvulus

E. Gastric atony

2. What is the most common cause of gastric outlet obstruction?

A. Primary adenocarcinoma

B. Metastatic carcinoma

C. Peptic ulcer disease

D. Pancreatitis

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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