1病历摘要男,45岁,农民。左上腹部间断性绞痛向两肋及胸背部放射2个月来诊,伴有打嗝,每次持续约0.5 h,间歇期无症状。饮食无异常。患者在外地打工,有饮食不洁史。查体:腹部无压痛,反跳痛及肌紧张。消化道气钡双对比造影检查:胃内中等量滞留液,口服造影剂150 ml后观察,胃充盈良好,仰卧位黏膜像及俯卧位充盈像,胃内未见充盈缺损,但 1 medical record summary male, 45 years old, farmer. The left upper abdomen intermittent colic to two ribs and thoracodorsal radiation 2 months to diagnose, accompanied by hiccups, each lasting about 0.5 h, intermittent asymptomatic. No abnormal diet. Patients working in the field, a history of eating dirty. Physical examination: Abdominal tenderness, rebound tenderness and muscle tension. Gastrointestinal double contrast barium examination: moderate gastric retention solution, 150 ml of oral contrast agent after observation, filling the stomach well, supine mucosa like and prone position filling like, no filling defect in the stomach, but