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==Overview==
==Overview==
Meningioma may be classified according to histological criteria of the WHO into 3 groups: benign classic meningioma (WHO grade 1), atypical meningioma (WHO grade 2), and anaplastic malignant meningioma (WHO grade 3). Meningioma may also be classified according to the tumor location into 2 main subtypes: intradural and extradural meningioma.
Meningioma may be classified according to histological criteria of the WHO into 3 groups: benign classic meningioma (WHO grade 1), atypical meningioma (WHO grade 2), and anaplastic malignant meningioma (WHO grade 3). Meningioma may also be classified according to the tumor location into 2 main subtypes: intradural and extradural meningioma.<ref name="Wiki">Meningioma diagnosi. Wikipedia(2015) https://en.wikipedia.org/wiki/Meningioma#History_and_nomenclature Accessed on September, 25th 2015</ref><ref>Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015</ref>


==Classification==
==Classification==
*Meningioma may be classified according to WHO histological criteria into 3 groups: benign classic meningioma (WHO grade 1), atypical meningioma (WHO grade 2), and anaplastic malignant meningioma (WHO grade 3).
*Meningioma may be classified according to WHO histological criteria into 3 groups: benign classic meningioma (WHO grade 1), atypical meningioma (WHO grade 2), and anaplastic malignant meningioma (WHO grade 3).<ref name="Wiki">Meningioma diagnosi. Wikipedia(2015) https://en.wikipedia.org/wiki/Meningioma#History_and_nomenclature Accessed on September, 25th 2015</ref><ref>Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015</ref>


*The table below lists the subtypes of meningioma according to the WHO grades:
*The table below lists the subtypes of meningioma according to the WHO grades:<ref name="Wiki">Meningioma diagnosi. Wikipedia(2015) https://en.wikipedia.org/wiki/Meningioma#History_and_nomenclature Accessed on September, 25th 2015</ref><ref>Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015</ref>
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*Meningioma may also be classified according to the tumor location into 2 main subtypes: intradural and extradural meningioma.
*Meningioma may also be classified according to the tumor location into 2 main subtypes: intradural and extradural meningioma.<ref name="Wiki">Meningioma diagnosi. Wikipedia(2015) https://en.wikipedia.org/wiki/Meningioma#History_and_nomenclature Accessed on September, 25th 2015</ref><ref>Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015</ref>


==References==
==References==

Revision as of 16:41, 24 September 2015

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Haytham Allaham, M.D. [2]

Overview

Meningioma may be classified according to histological criteria of the WHO into 3 groups: benign classic meningioma (WHO grade 1), atypical meningioma (WHO grade 2), and anaplastic malignant meningioma (WHO grade 3). Meningioma may also be classified according to the tumor location into 2 main subtypes: intradural and extradural meningioma.[1][2]

Classification

  • Meningioma may be classified according to WHO histological criteria into 3 groups: benign classic meningioma (WHO grade 1), atypical meningioma (WHO grade 2), and anaplastic malignant meningioma (WHO grade 3).[1][3]
  • The table below lists the subtypes of meningioma according to the WHO grades:[1][4]
WHO grade Subtypes

Benign classic meningioma
(WHO grade 1)

Meningeothelial, fibroblastic, transitional, psammomatous,
angiomatous, microcytsic, secretory, lymphoplasmacyte-rich, metaplastic

Atypical meningioma
(WHO grade 2)

Chordoid, clear cell

Anaplastic malignant meningioma
(WHO grade 3)

Rhabdoid, papillary

  • Meningioma may also be classified according to the tumor location into 2 main subtypes: intradural and extradural meningioma.[1][5]

References

  1. ↑ 1.0 1.1 1.2 1.3 Meningioma diagnosi. Wikipedia(2015) https://en.wikipedia.org/wiki/Meningioma#History_and_nomenclature Accessed on September, 25th 2015
  2. ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
  3. ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
  4. ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
  5. ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
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