Spontaneous regression of hepatic pseudotumor.

Inflammatory pseudotumor of the liver is a rare benign lesion that usually has been discovered at laparotomy and treated by hepatic resection. We report a case of hepatic pseudotumor that was treated without surgery and that subsequently spontaneously resolved. Hepatic pseudotumor occur in all age groups, but most commonly in middle-aged adults, with a 3.5:1 male predominance. Presenting symptoms are 1 or 2 months of fever (66%), abdominal pain (51%), and weight loss (21%). Most often, the lesions are solitary encapsulated tumors composed of whorled laminated fibrous stroma and chronic inflammatory infiltrate. Our report provides documentation of spontaneous resolution of a hepatic pseudotumor.