局限于肝内下腔静脉的脂肪沉积是少见的良性病变。作者回顾复习了4例下腔静脉局部脂肪沉淀的病史及影像学资料(均为男性,年龄33～69岁)。3例行腹部及盆腔CT(2例口服和静脉造影剂),1例行胸部对比增强CT。其中2例已分别于2、7年前诊断。该4例最近分别由于创伤后、代谢性疾病、胸片示纵隔增宽和怀疑后腹膜出血而行CT检查。作者发现,4例CT上均显示圆形或椭圆形脂肪沉积凸入下腔静脉腔内,密度为-37～-138HU。所有脂肪沉积 Fat deposition confined to the intrahepatic inferior vena cava is a rare benign lesion. The authors reviewed 4 cases of inferior vena cava local fat precipitation history and imaging data (both men, aged 33 to 69 years). 3 cases of abdominal and pelvic CT (2 cases of oral and intravenous contrast agent), 1 case of chest contrast enhanced CT. Two of these cases were diagnosed 2 to 7 years ago. The four cases were recently due to trauma, metabolic disease, chest X-ray showed widened mediastinal and suspected peritoneal bleeding after CT examination. The authors found that four cases of CT showed round or oval fat deposition convex into the lumen of the inferior vena cava, the density of -37 ~ -138HU. All fat deposits