An 81-yo woman with a history of a hiatal hernia and esophagitis on omeprazole presents with 2 days of nausea and retching but is unable to vomit. She denied abdominal pain or constipation. Exam: afebrile, tachycardic, nontender abdomen.
Gastric volvulus
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Barrett's esophagus
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Pericarditis
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Small bowel obstruction
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Lung abscess
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