Meningioma classification
|
Meningioma Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Meningioma classification On the Web |
|
American Roentgen Ray Society Images of Meningioma classification |
|
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 the 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 the 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).[1][2]
- Benign classic meningiomas are low-grade (grade I) tumors that grow very slowly and rarely invade surrounding tissues.[3]
- Atypical meningioma (WHO grade 2) are not clearly malignant, but grow faster than benign meningiomas.[3]
- Anaplastic malignant meningioma (WHO grade 3) tend to grow rapidly and invade surrounding tissue.[3]
- The table below lists the subtypes of meningioma according to the WHO grades:[1][2]
| 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][2]
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
- ↑ 2.0 2.1 2.2 2.3 Meningioma. Liberpathology(2015) http://librepathology.org/wiki/index.php/Meningioma#Quick_overview Accessed on September, 25th 2015
- ↑ 3.0 3.1 3.2 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