Management of Patients with Hemangiopericytoma: Case Report and Literature Review

Abstract

The hemangiopericytomas (HPCs) are rare tumors of the dural base and correspond of less than 1% of all primary Central Nervous System (CNS) tumors. It usually affects adult males with 40 to 50 years old and has a supratentorial location (70%), followed by posterior fossa (15%) and spine (15%). Generally, it has fast progression and manifests clinically through headache, focal neurological deficits and epileptic seizures. The tumor has high incidence of local recurrence, from 34% to 90%, and it is estimated that the follow-up of these patients should be done for at least 7, 5 years. The percentage of longdistance metastases is lower, 12% to 55%, affecting especially bones, lungs and liver, in decreasing order. The objective of this study is to evaluate the contradictions when approaching these tumors and to analyze a rare case of pediatric involvement. It was prepared a case report and a literature review was made using the data bases MEDLINE®, PubMed and Cochrane, where 31 relevant articles were selected related to the proposed study. The outcome of HPC treatment can change according to the tumor's location in the CNS or extracranial, the tumor's size and the histopathological classification. Therefore, many studies have been proposed observing the answer of the surgical resection, the adjuvant radiotherapy, the radiosurgery and the antiangiogenic therapies.