患儿女,年龄12岁。腹胀伴恶心呕吐,对症处理后症状无好转入院,查体:皮肤轻度黄染,无发热、无咳嗽、无腹泻、无脓血便、无皮疹、无水肿,心肺未见异常。于我院查腹部彩超示:肝脏体积轻度增大,实质回声不均质、增粗。肝左静脉近心段闭塞.肝中静脉全段闭塞、管腔内可及低回声充填;肝右静脉近心段闭塞(图1),CDFI:闭塞段肝静脉内均未见血流信号,肝内可及多条侧支静脉形成,未探及粗大肝右后下静脉及尾叶静脉开放。下腔静脉生理 Children with children, age 12 years old. Abdominal distension with nausea and vomiting, symptomatic treatment without improvement after admission to hospital, physical examination: skin mild yellow dye, no fever, no cough, no diarrhea, no sepsis, no rash, no edema, no abnormal heart and lung. In our hospital check abdominal ultrasound: liver slightly increased volume, the real echo is not homogeneous, thicker. Left hepatic vein occlusion of the proximal segment, occlusion of the entire hepatic vein, hypoechoic filling of the lumen, proximal hepatic vein occlusion of the right hepatic vein (Figure 1), CDFI: No hepatic flow signals were found in the occluded hepatic vein, Intrahepatic and multiple collateral vessels can form, not to explore and the right inferior vena cava and caudate lobe venous open. Inferior vena cava physiology