2A00.4ICD-11 MMS 2026-01
Astroblastoma of the brain
Description
A rare glial neoplasm more commonly found in young adults. It is characterised by tumour cells with characteristics suggestive of an astrocytic origin (positive for GFAP), arranged perivascularly. The cells have broad, non-tapering processes radiating towards a central blood vessel. The biologic behaviour of astroblastomas is variable, so no WHO grade has been established, yet.
Index terms
- Astroblastoma of the brain
- astroblastoma of unspecified site
Exclusions from above levels
Sibling codes
Foundation entity
Astroblastoma of the brain – http://id.who.int/icd/entity/96344074