Harris D J, Fornasier V L, Livingston K E
J Neurosurg. 1978 Dec;49(6):914-20. doi: 10.3171/jns.1978.49.6.0914.
Hemangiopericytoma is a vascular neoplasm consisting of capillaries outlined by an intact basement membrane that separates the endothelial cells of the capillaries from the spindle-shaped tumor cells in the extravascular area. These neoplasms are found in soft tissues but have rarely been shown to involve the spinal canal. This is a report of three such cases. Surgical removal of the tumor from the spinal canal was technically difficult. A high risk of recurrence has been reported but in these three cases adjunctive radiotherapy appeared to be of benefit in controlling the progression of the disease. These cases, added to the six cases in the literature, confirm the existence of hemangiopericytoma involving the vertebral column with extension into the spinal canal. This entity should be included in the differential diagnosis of lesions of the spinal canal. The risk of intraoperative hemorrhage should be anticipated.
血管外皮细胞瘤是一种血管性肿瘤，由完整基底膜勾勒出的毛细血管组成，该基底膜将毛细血管的内皮细胞与血管外区域的梭形肿瘤细胞分隔开来。这些肿瘤见于软组织，但很少累及椎管。本文报告3例此类病例。从椎管内手术切除肿瘤技术上有难度。已有报道复发风险高，但在这3例中，辅助放疗似乎有助于控制疾病进展。这些病例加上文献中的6例，证实了存在累及脊柱并延伸至椎管的血管外皮细胞瘤。在椎管病变的鉴别诊断中应考虑到这一实体。应预见到术中出血的风险。
