本文讨论40例经病理学证实的肝脏肿瘤的动态CT扫描表现。其中原发性肝癌28例,转移性肝癌5例,海绵状血管瘤6例,肝腺瘤1例。根据肿瘤的增强形态,将其分为边缘型、中央型及无明显增强型,同时根据肿癌的增强密度在时间上的变化,绘出三种时间—密度曲线。Ⅰ型曲线是速升缓降型,Ⅱ This article discusses dynamic CT scans of 40 cases of liver tumors confirmed by pathology. There were 28 cases of primary liver cancer, 5 cases of metastatic liver cancer, 6 cases of cavernous hemangioma, and 1 case of hepatic adenoma. According to the enhanced morphology of the tumor, it was divided into borderline, central, and no significant enhancement. At the same time, three time-density curves were plotted according to the time-dependent changes in the enhanced density of the tumor. The I-type curve is a slow-rising type, II