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肺静脉异位引流临床上较为罕见，现报告４例并结合文献资料就其影像学表现进行分析讨论。典型病例介绍例１男性．３．５岁，发育差，自幼易患感冒，活动后口唇紫绀。检查：胸骨左缘第二肋间可闻及Ⅱ级吹风样收缩期杂音。心脏Ｂ超检查：见房间隔上部有宽约１．４ｃｍ回声中断，?
Ectopic pulmonary venous drainage is relatively rare, 4 cases are reported and combined with the literature on the imaging performance analysis and discussion. Typical case introduction example 1 male. 3.5 years old, poorly developed, susceptible to a cold since childhood, cyanotic lips after the event. Check: the second intercostal sternal border can smell and Ⅱ grade hair-style systolic murmur. Heart B-ultrasound: see the upper part of the atrial septal ependymic 1.4cm wide echo,?