Purpose : The purpose of this study was to report the CT findings of four patients with hepatic abscesssecondary to perforated acute cholecystitis. Materials and Methods : We retrospectively reviewed the CT findingsof four patients with surgicallyproven hepatic abscess secondary to perforated acute cholecystitis. CT findingswere analysed with respect to the observation of the gallbladder, pericholecystic space, hepatic lesions, andperitoneal cavity. All patients underwent cholecystectomy, with drainage of the hepatic abscess. Results : CTfindings of hepatic abscess secondary to perforated acute cholecystitis were hypodense mass formation in thepericholecystic space(n=3), irreguarity and wall defect of Gallbladder(n=4), thickened Gallbladder wall(n=4),stone with debris(n=4), and local or diffuse infiltration of the pericholecystic area(n=3), omentum, andmesentery. Conclusion : CT was helpful in diagnosing the hepatic abscess secondary to perforated acutecholecystitis.