【名词&注释】
肝硬化(liver cirrhosis)、肺动脉(pulmonary artery)、胆总管(common bile duct)、良性肿瘤(benign tumor)、右心房(right atrium)、颈动脉瘤(carotid artery aneurysm)、肺静脉异位(anomalous pulmonary venous)、恶性瘤(malignant tumor)、肺静脉回流(pulmonary venous connection)、可观察到
[单选题]心内型肺静脉异位(anomalous pulmonary venous)引流在超声上主要表现是
A. 肺静脉回流(pulmonary venous connection)到下腔静脉
B. 肺静脉回流(pulmonary venous connection)到上腔静脉
C. 肺静脉直接回流到主动脉
D. 肺静脉回流(pulmonary venous connection)到冠状窦
E. 肺静脉直接回流到肺动脉