【关键词】 肠套叠;不典型;小儿;误诊 急性肠套叠（acute intussusception，AI）是婴幼 儿时期常见的急腹症，早期确诊对其诊治及预后有极其重要意义。
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方法：回顾分析158例诊断明确的小儿急性肠套叠的腹部立卧位片。
Methods The plain film findings in 158 cases of provenacute intussusception were reviewed.
目的应用超声对急性肠系膜淋巴结炎与婴幼儿肠套叠发病关系进行研究。
Objective The main aim is to investigate the relationship of acute mesentery lymphadenitis and infant intussusception using high frequency ultrasound.
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