病例1为45岁妇女,自幼在老挝万象长大,儿童时代曾每周2次在湄公河里游泳。16岁时在东北部的桑怒住了一年,也常在丘河里游泳。其后回到万象,20岁以后很少接触河水。1978年移居泰国廊开难民营。一年后到加拿大定居。1974～1980年每天喝8两烈酒。1980～1983年有6次食道静脉出血。最后一次因出血不止而施行外科手术,发现肝 Case 1 was a 45-year-old woman who grew up in Vientiane, Laos. She used to swim in the Mekong twice a week during her childhood. 16-year-old lived in the northeast Sang anger, often in the Qiuhe swimming. Later returned to Vientiane, after the age of 20 rarely touch the river. In 1978 moved to Nong Khai refugee camp in Thailand. One year later settled in Canada. From 1974 to 1980 8 two spirits were drunk daily. Between 1980 and 1983 there were 6 times of esophageal venous bleeding. The last time due to bleeding and surgery, found the liver