Hemangiopericytomas in the Spine

Abstract

High-grade tumors had a shorter survival time and recurred earlier than low-grade tumors. Surgical removal and postoperative radiotherapy are critical for the treatment of intraspinal HPCs. However, total resection may not necessary for these tumors. Stereotactic radiosurgery may be a good alternative to control the recurrent lesions.

Hemangiopericytoma of the cervical spine

“…The extradural lesions are further classified as either dural based or primary osseous. [123] In the present case, the tumor was an extradural lesion of the primary osseous variety. Spinal HPCs are significantly less common than intracranial meningeal HPCs.…”

“…Of the 20 extradural tumors, 18 were intraspinal dural based and 2 tumors were primary osseous. [1234] The present case report is the third case of a primary osseous cervical HPC.…”

“…Meningeal HPC constitute 2-4% of all meningeal tumors and 1% of all CNS tumors. [1] After the first description by Stout and Murray in 1942, approximately 106 cases of spinal HPC have been reported. Of these 34 cases were located in the cervical spine.…”

“…Both intradural and extradural dural based HPCs are most common in the cervical spine and present with neural deficits. [123] In contrast, primary osseous HPCs mostly affect the lumbosacral spine and have paravertebral extensions, but do not present with neurological deficit. Most commonly these lesions present with pain.…”

“…These tumors commonly arise from the dura and are located in the extradural compartment. [12] The present case is a rare case of primary osseous HPC arising from cervical lamina and spreading intraspinally with an extradural component as well as an intermuscular extension.…”