Results Of 30 cases studied, pylethrombosis was found in 1 case, hepatocellular carcinoma in 1 case, fistula in 2 cases,结果超声诊断肝癌1例，门静脉栓塞1例，胆漏2例，胆管结石2例，18例胆道狭窄伴胆泥形成。