Retroperitoneal Neurilemmoma Misdiagnosed as Hepatic Tumor: A Case Report

A case of abdominal mass was studied by dynamic computed tomography (CT), magnetic resonance imaging (MRI) and hepatic angiography. The results of radiological examinations made the diagnosis even more confusing. The patient underwent laparotomy under a preoperative diagnosis of hepatic tumor. The tumor was finally diagnosed as a benign retroperitoneal neurilemmoma by histological examination. This case indicated that careful examination is necessary to determine whether it arises from the liver itself or from neighboring tissues. Radiological examinations are not reliable sometimes.