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USMLE · Question #535
USMLE Question #535: Real Exam Question with Answer & Explanation
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Question
A 47-year-old woman comes to the emergency department because of a 2-week history of intermittent abdominal pain, nausea, and vomiting. She has had similar episodes sporadically during the past 4 years. Physical examination shows dehydration, jaundice, and upper abdominal distention. Laboratory studies show hyperbilirubinemia. A CT scan and upper gastrointestinal series of the abdomen with oral contrast are shown; the arrows indicate the abnormality. Which of the following is the most likely cause of these findings?
Exhibit
Options
- AAnnular pancreas
- BCirrhosis of the liver
- CDuodenal constriction by the portal vein
- DDuodenal constriction by the superior mesenteric artery
- EPyloric stenosis
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