梗阻性黄疸在腹部急症中是较常见。本文总结了58例梗阻性黄疸病人的CT图像,对个部位梗阻的CT征象和产生的疾病进行了对比分析,认为:梗阻的原因可按4个部位来分析。(1)肝门区;(2)胰头区;壶腹周围区。每个部位的CT征象都有所不同,引起的疾病也不完全相同。在肝门区常见的疾病主要 Obstructive jaundice is more common in emergency abdomen. This article summarizes the CT images of 58 patients with obstructive jaundice and compares the CT signs of the obstructive jaundice and the diseases. It is concluded that the causes of obstruction can be analyzed according to 4 parts. (1) Hemen area; (2) pancreatic head area; ampulla around the area. CT signs of each site are different, causing the disease is not exactly the same. In the hilar area common diseases