title: Transient focal spinal cord hyperemia after resection of spinal meningioma: case report.
abstract: OBJECTIVE
  Transient postoperative focal hyperemia in the spinal cord is rare. We report 2 patients with transient focal hyperemia after the resection of a spinal meningioma that led to temporal neurological deterioration followed by complete recovery.
  
  
  METHODS
  Two patients presented with cervical meningiomas at the C7 and C1-C2 levels. Preoperatively, both patients experienced gradual exacerbation of spastic tetraparesis. Magnetic resonance imaging revealed isointensity on T1-weighted images and high intensity on T2-weighted images with homogeneous enhancement.
  
  
  METHODS
  Both patients underwent complete tumor removal. A histopathological examination revealed a meningothelial meningioma in both patients. Postoperative magnetic resonance imaging revealed transient focal hyperemia of the cervical cord.
  
  
  CONCLUSIONS
  Both patients manifested transient focal hyperemia of the spinal cord after acute decompression by resection of a spinal meningioma.
authors.affiliation: Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan. kosei2@m.kufm.kagoshima-u.ac.jp
authors.forename: Kosei
authors.initials: K
authors.lastname: Ijiri
authors.forename: Kazutoshi
authors.initials: K
authors.lastname: Hida
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Yano
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Iwasaki
mesh_terms: D000368:Aged; D002574:Cervical Vertebrae; D005260:Female; D006801:Humans; D006940:Hyperemia / Q000209:etiology* / Q000473:pathology*; D007796:Laminectomy / Q000009:adverse effects*; D008279:Magnetic Resonance Imaging; D008577:Meningeal Neoplasms / Q000601:surgery; D008579:Meningioma / Q000601:surgery; D011183:Postoperative Complications; D013116:Spinal Cord / Q000473:pathology*