A 56-year-old man was admitted to the hospital because of a fever and back pain. On admission laboratory data showed slight degree of anemia and elevation of the biliary enzyme. Although the data of WBC and γ-globulin were within normal limits, CRP obtained high level as 3.6mg/dl. Abdominal CT showed a low density area in the caudate lobe which was 5.0×4.0cm in size and relatively enhanced. Abdominal MRI showed a low intensity area in T1 and high intensity in T2. Venography of the inferior cava showed round shift to the left side of inferior vana cava by a hepatic tumor. A malignant tumor of the liver was suspected and excision of the lesion was carried out. Excised specimen was a yellowish-white tumor with clear border which was accompanied by microabscess with stones inside the tumor. Histological findings showed that abscess was surrounded by granuloma consisted of epitheloid cells and giant cells, and there were infiltrations of histiocytes, lymphocytes, plasma cells and development of connective tissue in its surroundings. The diagnosis of inflammatory pseudotumor was established histologically.