A Case of Hepatic Metastasis of Meningeal Hemangiopericytoma Diagnosed Preoperatively

Abstract

A 43-year-old woman was referred to our department because of hepatic tumors. Two years earlier, she underwent operation for meningeal hemangiopericytoma (HPC) at the Department of Neurosurgery in our hospital. When she was first seen at our department, tumor markers were in normal limits and the hepatic reserve was favorable. Preoperative abdominal dynamic CT showed a low density tumor lesion in the segment 8 and 4. The tumors were remarkably enhanced during the hepatic arterial phase. Because of her characteristic past history and multiple lesions arisen in the normal liver, a diagnosis of hepatocellular carcinoma (HCC) was ruled out and hepatic metastasis of HPC was diagnosed. Partial hepatectomy to remove the segment 8 and 4 was performed. Pathological findings of the tumors were similar to the previous meningeal tumor. She has no recurrence and is still alive with a good performance status as of 22 months after the surgery. Image findings of hepatic metastasis of HPC include hypervascularity on CT and MR like HCC. However, if patients with liver tumors have a history of surgical treatment for HPC, and they don't have any risk factors of HCC such as viral hepatitis, alcoholic hepatitis and non-alcoholic steatohepatitis, the possibility of hepatic metastasis of HPC should be considered.