專題討論3:脊髓相關疾病的診斷與治療
Management of spinal disorders

程 序 表

S3-5
脊髓腔內腫瘤的診斷與治療
Diagnosis and surgical intervention for intraspinal tumors
陳明德
台北榮民總醫院神經外科

  15% of primary CNS tumors are intraspinal (the intracranial: spinal CNS ratio for astrocytoma is 10:1; for ependymomas it`s 3-20:1). Most primary spinal tumors are benign (unlike the case with intracranial tumors). Most present by compression rather than invasion.
  Types of spinal tumors may be classified in 3 groups. Although metastases may be found in each category, they are usually extradural.
  1. Extradural (55%): arise outside cord in vertebral bodies or epidural tissues
    A.Metastatic: comprise the majority of extradural tumors
    B. Primary spinal tumors
  2.Intradural extramedullary (40%): arise in leptomeninges or roots
   A.Meningiomas
   B.Neurofibriomas
   C.Schwannomas
   D.Miscellaneous
   3.Intramedullary spinal cord tumors (5%): arise in spinal cord substances.
    Invade and destroy tracts and gray matter
   A.Astrocytomas
   B.Ependymoma
   C.Miscellaneous
Our case series are reviewed and discussed.