Meningioma classification: Difference between revisions
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==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).<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> | *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> | ||
*Benign classic meningiomas are low-grade (grade I) tumors that grow very slowly and rarely invade surrounding [[tissues]].<ref name="C">Meningioma. Canadian Cancer Society(2015) http://www.cancer.ca/en/cancer-information/cancer-type/brain-spinal/brain-and-spinal-tumours/meningioma/?region=mb Accessed on September, 25th 2015</ref> | |||
*Atypical meningioma (WHO grade 2) are not clearly malignant, but grow faster than benign meningiomas.<ref name="C">Meningioma. Canadian Cancer Society(2015) http://www.cancer.ca/en/cancer-information/cancer-type/brain-spinal/brain-and-spinal-tumours/meningioma/?region=mb Accessed on September, 25th 2015</ref> | |||
*Anaplastic malignant meningioma (WHO grade 3) tend to grow rapidly and invade surrounding tissue.<ref name="C">Meningioma. Canadian Cancer Society(2015) http://www.cancer.ca/en/cancer-information/cancer-type/brain-spinal/brain-and-spinal-tumours/meningioma/?region=mb Accessed on September, 25th 2015</ref> | |||
*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> | *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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Revision as of 16:59, 24 September 2015
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Meningioma Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Meningioma classification On the Web |
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American Roentgen Ray Society Images of Meningioma classification |
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Risk calculators and risk factors for Meningioma classification |
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]
- Benign classic meningiomas are low-grade (grade I) tumors that grow very slowly and rarely invade surrounding tissues.[4]
- Atypical meningioma (WHO grade 2) are not clearly malignant, but grow faster than benign meningiomas.[4]
- Anaplastic malignant meningioma (WHO grade 3) tend to grow rapidly and invade surrounding tissue.[4]
- The table below lists the subtypes of meningioma according to the WHO grades:[1][5]
| WHO grade | Subtypes |
|---|---|
|
Benign classic meningioma |
Meningothelial, fibroblastic, transitional, psammomatous, |
|
Atypical meningioma |
|
|
Anaplastic malignant meningioma |
Rhabdoid, papillary |
- Meningioma may also be classified according to the tumor location into 2 main subtypes: intradural and extradural meningioma.[1][6]
References
- ↑ 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
- ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
- ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
- ↑ 4.0 4.1 4.2 Meningioma. Canadian Cancer Society(2015) http://www.cancer.ca/en/cancer-information/cancer-type/brain-spinal/brain-and-spinal-tumours/meningioma/?region=mb Accessed on September, 25th 2015
- ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
- ↑ Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015