Glioma classification: Difference between revisions
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{{Glioma}} | {{Glioma}} | ||
{{CMG}}; '''Associate Editor-In-Chief:''' {{CZ}}{{SR}} | {{CMG}}; '''Associate Editor-In-Chief:''' {{CZ}}, {{SR}} | ||
==Overview== | ==Overview== | ||
Glioma may be classified into several subtypes based on the type of cell, grade, and location.<ref name=ddd>Classification of glioma. Wikipedia. https://en.wikipedia.org/wiki/Glioma</ref> | Glioma may be classified into several subtypes based on the type of cell (ependymoma, astrocytoma, oligodendroglioma, and mixed gliomas), grade (low-grade and high-grade gliomas), and location (infratentorial and supratentorial).<ref name=ddd>Classification of glioma. Wikipedia. https://en.wikipedia.org/wiki/Glioma</ref> | ||
==Classification== | ==Classification== | ||
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* [[Astrocytoma]]s — [[astrocyte]]s | * [[Astrocytoma]]s — [[astrocyte]]s | ||
* [[Oligodendroglioma]]s — [[oligodendrocyte]]s | * [[Oligodendroglioma]]s — [[oligodendrocyte]]s | ||
* Mixed gliomas | * Mixed gliomas ([[oligoastrocytomas]]) — cells from different types of [[glia]] | ||
===2. Based on the grade=== | ===2. Based on the grade=== | ||
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'''WHO grading system for astrocytomas''' | '''WHO grading system for astrocytomas''' | ||
{| style="border: 0px; font-size: 90%; margin: 3px; width: 600px" align=center | {| style="border: 0px; font-size: 90%; margin: 3px; width: 600px" align=center | ||
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WHO grade 1 | |||
| style="padding: 5px 5px; background: #F5F5F5;" | | | style="padding: 5px 5px; background: #F5F5F5;" | | ||
*[[Pilocytic astrocytoma]] | *[[Pilocytic astrocytoma]] | ||
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| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | | | style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | | ||
WHO grade 2 | |||
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*Low-grade astrocytoma | *[[Astrocytoma|Low-grade astrocytoma]] | ||
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| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | | | style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | | ||
WHO grade 3 | |||
| style="padding: 5px 5px; background: #F5F5F5;" | | | style="padding: 5px 5px; background: #F5F5F5;" | | ||
*[[anaplastic | *[[anaplastic|Anaplastic astrocytoma]] | ||
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| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | | | style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | | ||
WHO grade 4 | |||
| style="padding: 5px 5px; background: #F5F5F5;" | | | style="padding: 5px 5px; background: #F5F5F5;" | | ||
*[[Glioblastoma | *[[Glioblastoma multiforme]] | ||
|} | |} | ||
===3. Based on the location=== | ===3. Based on the location=== | ||
Glioma may be classified according to the location into two subtypes:<ref name=ddd>Classification of glioma. Wikipedia. https://en.wikipedia.org/wiki/Glioma</ref> | Glioma may be classified according to the location into two subtypes:<ref name=ddd>Classification of glioma. Wikipedia. https://en.wikipedia.org/wiki/Glioma</ref> | ||
* [[Infratentorial]] : mostly in children (70%) | * [[Infratentorial]]: mostly in children (70%) | ||
* [[Supratentorial]] : mostly in adults (70%) | * [[Supratentorial]]: mostly in adults (70%) | ||
==References== | ==References== | ||
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{{WikiDoc Help Menu}} | {{WikiDoc Help Menu}} | ||
{{WikiDoc Sources}} | {{WikiDoc Sources}} | ||
[[Category:Up-To-Date]] | |||
[[Category:Oncology]] | |||
[[Category:Medicine]] | |||
[[Category:Neurology]] | |||
[[Category:Neurosurgery]] |
Latest revision as of 23:37, 26 November 2017
Glioma Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Glioma classification On the Web |
American Roentgen Ray Society Images of Glioma classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2], Sujit Routray, M.D. [3]
Overview
Glioma may be classified into several subtypes based on the type of cell (ependymoma, astrocytoma, oligodendroglioma, and mixed gliomas), grade (low-grade and high-grade gliomas), and location (infratentorial and supratentorial).[1]
Classification
Glioma may be classified into several subtypes based on the type of cell, grade, and location.[1]
1. Based on the type of cell
Glioma may be classified according to the type of cell into four subtypes:[1]
- Ependymomas — ependymal cells
- Astrocytomas — astrocytes
- Oligodendrogliomas — oligodendrocytes
- Mixed gliomas (oligoastrocytomas) — cells from different types of glia
2. Based on the grade
Glioma may be classified according to the grade into two subtypes:[1]
- Low-grade gliomas are well-differentiated tumors. These are benign tumors.
- High-grade gliomas are undifferentiated or anaplastic tumors. These are malignant tumors.
WHO grading system for astrocytomas
Grade | Type of tumor |
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WHO grade 1 |
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WHO grade 2 |
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WHO grade 3 |
|
WHO grade 4 |
3. Based on the location
Glioma may be classified according to the location into two subtypes:[1]
- Infratentorial: mostly in children (70%)
- Supratentorial: mostly in adults (70%)