OBJECTIVETo explore the relationship between the CT findings of steatohepatitis and the special environmental factors in highland area, such as anoxia and life styles.

METHODSCT scan was performed for 64 patients, who were 44 males and 20 females in Tibet with a 3500-meter elevation.

RESULTSHypodensity in liver parenchyma and the invertion of liver density and spleen density were found in all the 64 patients. According to the degree and scope in their pathological changes, these patients were divided into three groups: severe 14, moderate 26, and mild 24.And diffused 43, sectional 14, regional 7 by CT findings. Among the 44 drinkers, 34 with more than 10 years were diffused by CT scan, the other 10 drinkers under 10 years, diffused 8, and sectional 2. In addition, the 27 steatohepatitis patients were all diffused by CT who were obese and had drinked more than 10 years.

CONCLUSIONanoxia and drinking excessively in highland area are relevant to fatty degeneration in liver.