Introduction: Hemangiopericytomas usually occur in the soft tissue and skeletal system. They rarely present in the spinal canal as a primary tumor. There are several case reports describing primary spinal hemangiopericytomas of the cervical and thoracic spine; however, there are only 3 reports of sacral hemangioperictyomas (Liu, 2013; McMaster, 1975; Zhao, 2007). We report an extremely rare presentation of a primary spinal hemangiopericytoma arising from the S2 nerve root with local bony destruction of the sacrum. Case Report: A 52 year-old male presented with low back pain and left lower extremity numbness and tingling. MRI showed a 5.2 cm x 5.7 cm sacral mass, and CT showed local bony destruction of the sacrum. He complained of left S2 pain. The patient was taken for resection of the tumor. A gross total resection was achieved from a posterior midline approach. A corridor lateral to the sacral nerves allows resection of the ventral portion of the tumor. A gross total resection was achieved with a small residual adherent to the left S2 nerve root. Pathology confirmed the tumor to be a grade II hemangiopericytoma. Adjuvant radiotherapy was recommended due to the residual.
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机译：简介：血管内皮细胞瘤通常发生在软组织和骨骼系统中。它们很少作为原发肿瘤出现在椎管中。有几例病例报告描述了颈椎和胸椎的原发性脊柱血管周细胞瘤。然而，仅有3例关于ty管血管性皮膜瘤的报道（Liu，2013; McMaster，1975; Zhao，2007）。我们报告了由S2神经根引起的primary骨局部骨破坏引起的原发性脊髓血管周细胞瘤的极为罕见的表现。病例报告：一名52岁男性，表现出腰痛，左下肢麻木和刺痛感。 MRI显示showed骨大小为5.2 cm x 5.7 cm，CT显示local骨局部骨破坏。他抱怨左S2疼痛。该患者被切除肿瘤。从后中线入路可完成总的切除。 lateral神经外侧的走廊可以切除肿瘤的腹侧部分。左总S2神经根残留少量残留物，实现了全切除。病理证实该肿瘤为II级血管周细胞瘤。由于残留，建议进行辅助放疗。
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