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An 81-year-old man presented to the emergency department of Beijing Chao-yang Hospital with a history of nausea, vomiting and sharp intermittent epigastric pain for 6 h. He had diffuse abdominal distension, tenderness and rebound tenderness in his epigastric region. Bowel sounds were hyperactive. He also complained that the abdominal pain became progressively aggravated. He denied operation history. …
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