本文研究了42例病毒性肝炎患者的肝穿刺活检,发现胆管的末梢分支有多种形态的亚微结构改变,其变化主要有以下几种:(1)慢迁肝及慢活肝组,由于广泛的肝细胞结合面间隙的扩张及淋巴细胞的浸润,使毛细胆管数量明显地减少。(2)在大部分病例中,都可见到不同程度扩张的毛细胆管,扩张甚者其管腔可达10～15微米。(3)易见肿胀的毛细胆管微绒毛,其顶端呈“棒状”扩 In this paper, 42 cases of viral hepatitis in patients with liver biopsy and found that the distal bile duct branch has a variety of subtypes of submicroscopic changes, the changes are mainly the following: (1) slow moving liver and slow living liver group, due to A wide range of liver cell surface interstitial expansion and lymphocyte infiltration, so that the number of biliary capillary significantly reduced. (2) In most cases, we can see the different extent of the expansion of the bile duct, dilatation worse or its lumen up to 10 to 15 microns. (3) easy to see swollen capillary bile duct microvilli, the top was “rod-shaped” expansion