A 33 year-old-female patient with hepatocellular carcinoma(HCC) was admitted due to right upper quadrant abdominal pain for 1 week. One month ago, she had been diagnosed hepatocellular carcinoma by percutaneous liver biopsy. MRI showed low signal intensity on T1-weighted image and high signal intensity in T2-weighted image on S 8 about 5 cm in diameter without portal vein thrombosis. She was treated with TACE(transheaptic arterial chemoemboilzation) and discharged. Two weeks later, follow-up computed tomography showed marginal lipiodol washout lesion on segment 8 about 2 cm in diameter. So she was admitted for the 2nd TACE. At admission physical findings revealed that she had mild tenderness on right upper quadrant with jaundice. Total bilirubin was 3.3 mg/dL, AST/ALT was 82/128 IU/L, and AFP was 1,210 ng/mL. Abdomen CT revealed diffuse attenuating mass lesion on segment 8 with intraperitoneal fluid collection with contrast enhancement suggesting HCC rupture.