Astrocytoma: Difference between revisions

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imported>Howard C. Berkowitz
(New page: {{subpages}} In neurology and oncology, an '''astrocytoma'' is a neoplasm of the central nervous system, which originates in normal astrocytes. Under the 1993 [[World H...)
 
imported>Howard C. Berkowitz
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  | title = The new WHO Classification of Tumors affecting the Central Nervous System
  | title = The new WHO Classification of Tumors affecting the Central Nervous System
  | author = Stephen B. Tatter
  | author = Stephen B. Tatter
| url = http://neurosurgery.mgh.harvard.edu/newwhobt.htm
  | year = 2006
  | year = 2006
  | publisher = Neurosurgical Service, [[Massachussetts General Hospital]]}}</ref>
  | publisher = Neurosurgical Service, [[Massachussetts General Hospital]]}}</ref>

Revision as of 14:09, 19 June 2010

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In neurology and oncology, an 'astrocytoma is a neoplasm of the central nervous system, which originates in normal astrocytes. Under the 1993 World Health Association criteria, a glioblastoma can be considered a "high-grade" (Grade IV) astrocytoma; grade III anaplastic astrocytomas are also malignant. The lower-grade astrocytomas may progress to higher-grade [1]

WHO designation WHO grade Kernohan grade St. Anne/Mayo grade St. Anne/Mayo criteria
pilocytic astrocytoma I I excluded
Astrocytoma II I, II 1 or 2 1: No criteria fulfilled; 2: one criterian, usually nuclear atypia
Anaplastic II II, III 3 Two criteria: nuclear atypia and mitosis
Malignant astrocytoma and glioblastoma IV III, IV 4 Three or four; add necrosis

References