②X线检查可见膈肌升高、运动减弱，可有轻微胸膜反应使肋膈角或有少量胸腔积液在肝区可见含气或含液的空腔先天性胆总管囊肿（congenitalcholedochocyst）先天性胆总管囊肿为常见的一种先天性胆道囊性扩张症，男与女的比例大约为1∶4。
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