Inflammatory Pseudotumor of the Liver: A Case Report
We report a surgical case of inflammatory pseudotumor of the liver. A 66-year-old man was admitted to our hospital to evaluate a high grade fever and a mass in the right hepatic lobe. We performed hepatic subsegmentectomy because of possible malignancy. The cut section of the resected tumor was yellowish white and firm. It was well circumscribed without encapsulation, measuring 4.0×2.5 cm. Microscopic examinations revealed proliferation of fibroblasts as well as chronic inflammatory cells. It was diagnosed as an inflammatory pseudotumor (xanthogranulomatous type). It is difficult to differentiate between inflammatory pseudotumor and malignant tumor of the liver preoperatively despite the progress in diagnostic tools. Most cases are diagnosed postoperatively by a pathologic examination. Our case indicates that a fever should raise the possibility of inflammatory pseudotumor of the liver in non-cirrhotic patients with a solitary mass and an aspiration biopsy may be helpful.