Hemangiopericytoma of the Posterior Fossa: A Case Report and Review of the Literature

Abstract

Intracranial hemangiopericytoma is unusual, and those occurring in the posterior fossa is extremely rare; we report such a rare case of hemangiopericytoma of the posterior fossa. The radiologic findings and gross characteristics of hemangiopericytomas are sometimes quite similar to those of meningiomas. Although extremely rare, the operator should be aware of the existence of this disorder to dexterously manage the aggressive nature and high vascular tendency of hemangiopericytomas. The radiological features and histological findings in this case are discussed in this study.

Supratentorial Hemangiopericytoma: Case Report

“…However, without surgery, pericytoma usually responds poorly to chemotherapy and radiotherapy. [1] Postoperative radiotherapy may be desirable due to its survival prolongation effects. Pericytoma frequently metastasizes to liver, lungs, and musculoskeletal system.…”

“…Pericytoma frequently metastasizes to liver, lungs, and musculoskeletal system. [1] Meningeal HPC is a very rarely seen tumor, generally localized in supratentorial region. Meningioma should be considered in differential diagnosis.…”

“…[1][2][3] Intracranial HPC is rare and can have clinical features resembling meningioma. [4] Intracranial HPC accounts for 0.4% of primary central nervous system (CNS) tumors; it is generally localized in supratentorial region.…”

Intracranial Hemangiopericytoma – A Case Report

“…Hemangiopericytomas are rare mesenchymal tumors originating from pericytes' proliferation and characterized by a distinguished biological and clinical behavior. They account for less than 1% of intracranial tumors [2], with an incidence of 3.77 / 10.000.000 [3] and are classified as soft tissue sarcomas and usually affect individuals between 20 and 70 years of age [4].…”

Hypervascular Soft Tissue Tumor of the Skull Suspicious for Hemangiopericytoma

“…Hemangiopericytoma (HPC) is a rare mesenchymal tumor that is predominantly found in the pelvis, retroperitoneum, and lower extremities, occasionally occurring in the larynx, spleen, bones of the thorax, or the meninges. [1][2][3][4][5][6][7][8] Intracranial meningeal hemangiopericytoma (M-HPC) represents a rare and aggressive intracranial neoplasm located along the dural sinuses. It constitutes less than 1% of all intracranial tumors and approximately 2% to 4% of all meningeal tumors.…”