脊髄神経根に発生したHemangioblastomaの1例

Hemangioblastoma of the Spinal Nerve Root

I．はじめに

　脊髄血管芽腫は稀な脊髄腫瘍とされてきたが，近年MRIの普及によって比較的容易に診断されるようになってきた．脊髄血管芽腫はその発生部位によって髄内，軟膜下髄外，脊髄神経根に分類される．今回われわれは，比較的稀とされている脊髄神経根から発生した脊髄血管芽腫の1例を経験したので報告する．

A case of extramedullary spinal root hemangioblastoma is described. A 44-year-old male presented with gait disturbance. Magnetic resonance (MR) imaging revealed a round enhanced mass at the level of T8.Spinal angiography showed a vascular tumor fed by the posterior spinal artery via the left T9 intercostal artery. A laminectomy of T8-T9 was performed, and a reddish brown-colored soft tumor originating in the T9 posterior spinal nerve root was exposed. The postoperative course was uneventful.This is the first reported case of a spinal root hemangioblastoma that was not related with Von Hippel-Lindau disease.