title: Spinal osteoblastoma complicated with epidural hematoma: two case reports.
abstract: METHODS
  Case report.
  
  
  OBJECTIVE
  To describe 2 patients of spinal osteoblastoma in upper thoracic lamina, complicated with epidural hematoma and symptoms of cord compression.
  
  
  BACKGROUND
  Review the clinical presentation, radiologic findings, and treatment in these 2 cases, with an emphasis on surgical management and outcomes.
  
  
  METHODS
  Two patients initially presented with symptoms of incomplete neurological deficit after mild injury. Computer tomography scan indicated osteolytic destruction of thoracic lamina; magnetic resonance imaging illustrated that lesion in the posterior element of thoracic spine with epidural hematoma and sign of spinal cord compression. Marginal surgical resection and hematoma evacuation were performed.
  
  
  RESULTS
  Histologic diagnosis indicated destructive osteoblastomas with hemorrhage. Complete neurologic recovery was achieved at 1 week and 3 months after surgery. Both patients had no evidence of tumor recurrence at an average follow-up of 37 months.
  
  
  CONCLUSIONS
  By using surgical resection and hematoma evacuation, good outcome could be achieved for spinal osteoblastoma complicated with epidural hematoma.
authors.affiliation: Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, People's Republic of China.
authors.forename: Bang-Ping
authors.initials: BP
authors.lastname: Qian
authors.forename: Yong
authors.initials: Y
authors.lastname: Qiu
authors.forename: Zezhang
authors.initials: Z
authors.lastname: Zhu
authors.forename: Hui
authors.initials: H
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D000328:Adult; D019299:Decompression, Surgical; D004824:Epidural Space / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D046748:Hematoma, Epidural, Spinal / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007796:Laminectomy; D008279:Magnetic Resonance Imaging; D008297:Male; D018215:Osteoblastoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D010014:Osteolysis / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology; D020335:Paraparesis / Q000209:etiology / Q000473:pathology / Q000601:surgery; D013115:Spinal Canal / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D013117:Spinal Cord Compression / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D013125:Spinal Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome