2A00.4 Astroblastoma of the brain

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01


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.

postcoordination

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synonyms

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