Purpose; Hepatic atrophy has been recognized as a complication of hepatic and biliary disease but we haveoften found it in follow up CT after transcatheter arterial embolization (TACE). The purpose of this study is toevaluate the characteristics of hepatic atrophy after TACE. Material and Methods; Of 53 patients who had TACE, Weevaluated the relationship between the incidence of hepatic atrophy and the number of TACE, and also evaluated theaverage number of TACE in patients with hepatic atrophy. Of 20 patients who had received more than average numberof TACE for development of hepatic atrophy ( 2 times with portal vein obstruction, 2.7 times without portal veinobstruction in this study ), we evaluated the relationship between the lipiodol uptake pattern of tumor and theincidence of hepatic atrophy. Results; There were 8 cases of hepatic atrophy ( 3 with portal vein obstruction, 5without portal vein obstruction ), average number for development of hepatic atrophy were 2.5 times. As the numberof TACE were increased, the incidence of hepatic atrophy were also increased. Of 20 patients who received morethan average number of TACE for development of hepatic atrophy, we noted 6 cases of hepatic atrophy in 11 patientswith dense homogenous lipiodol uptake pattern of tumor and noted only 1 case of hepatic atrophy in 9 patient withinhomogenous lipiodol uptake pattern. Conclusion; Hepatic atrophy was one of the CT findings after TACE evenwithout portal vein obstruction. average number of TACE was 2.5 times and risk factors for development of hepaticatrophy were portal vein obstruction, increased number of TACE, and dense homogenous lipiodol uptake pattern oftumor.