2016 Volume 36 Issue 6 Pages 1115-1119
A 36-year-old woman was referred to our hospital for further examination of a liver tumor. Abdominal contrast-enhanced CT and ultrasound revealed a mass approximately 50 mm in size in the S4 segment of the liver that was suspected to be a hepatocellular adenoma, although the possibility of hepatocellular carcinoma could not be ruled out. Immediately after these examinations, the patient developed high grade fever （39℃） that persisted for several days. The fever did not improve with conservative treatment, while the tumor also continued to increase in size. Partial hepatectomy was performed for both diagnostic and therapeutic purposes. Histopathological examination revealed the diagnosis of inflammatory pseudotumor. The fever resolved immediately after the surgery, the patient's subsequent course was uneventful, and she was discharged six days after the surgery. Inflammatory pseudotumor of the liver is a benign lesion with no characteristic imaging findings, and is frequently difficult to diagnose. In cases such as this one, in which a tumor is believed to be benign but biopsy is not feasible, the mass is found to be growing rapidly, and the patient is symptomatic, surgery for diagnosis and therapy is an option that should be considered.
