Posterior fossa astrocytoma
Posterior fossa astrocytomas, those arising either from the cerebellum or from the brainstem are most frequently seen in children. Approximately 60% of all pediatric astrocytomas are found in the posterior fossa (20% brainstem, 40% cerebellum).
Many types of astrocytoma are found in the posterior fossa of children, however, two make up the majority of cases:
Related Radiopaedia articles
Astrocytic tumour
-
astrocytic tumors
- WHO classification of CNS tumors
- WHO grading of CNS tumors
- VASARI MRI feature set
- diffuse astrocytoma grading
- grade I:
- grade II:
- chordoid glioma of the third ventricle
-
low-grade diffuse astrocytoma
- fibrillary astrocytoma (no longer recognized)
- protoplasmic astrocytoma (no longer recognized)
- gemistocytic astrocytoma
- oligoastrocytoma
- pilomyxoid astrocytoma
- pleomorphic xanthoastrocytoma
- grade III
- grade IV:
-
glioblastoma (GBM)
- glioblastoma IDH wildtype
- glioblastoma IDH mutant
- glioblastoma NOS
- variants
- diffuse midline glioma H3 K27M–mutant
-
glioblastoma (GBM)
- glioblastoma vs cerebral metastasis
- radiation-induced gliomas
- gliomatosis cerebri (growth pattern)
- specific locations
- treatment response
- prognostic genetic markers
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