The results suggested (1)The membranous obstruction in inferior vena cava was the main reason of BCS in these patients.
结果提示：（1）本组患者中，下腔静脉肝后段膜性闭塞是BCS的主要原因。
Results The types of obstruction of IVC include membranous obstruction (5 cases), occlusion (15 cases) and stenosis (12 cases).
结果下腔静脉梗阻：隔膜性5例，闭塞性15例，狭窄性12例。
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