Meningiomas

Histological subtypes of meningiomas (WHO 2021):

1. meningothelial
2. fibrous
3. transitional
4. psammomatous
5. angiomatous
6. microcystic
7. secretory
8. lymphoplasmacyte-rich
9. metaplastic
10. chordoid
11. clear cell
12. papillary
13. rhabdoid
14. atypical
15. anaplastic
16. Others

The subtypes of meningiomas that is often associated with oedema beyond the tumour margins are:

• angiomatous meningioma
• microcystic meningiomas
• secretory