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The fifth edition of the World Health Organization (WHO) Classification of Tumors of the Central Nervous System (WHO CNS5) features several changes in the classification, diagnostic criteria, nomenclature, and grading… Click to show full abstract
The fifth edition of the World Health Organization (WHO) Classification of Tumors of the Central Nervous System (WHO CNS5) features several changes in the classification, diagnostic criteria, nomenclature, and grading of diffuse gliomas. Adult-type diffuse gliomas are genetically defined and include astrocytoma, isocitrate dehydrogenase (IDH)-mutant, oligodendroglioma, IDH-mutant and 1p/19q codeleted, and glioblastoma, IDH-wildtype. This review briefly discusses two tumor types: astrocytoma, IDH-mutant, and oligodendroglioma, IDH-mutant and 1p/19q codeleted, with emphasis on relevant changes in their classification and defining molecular genetic alterations. A simplified approach to the diagnosis of these tumors is provided.
Journal Title: Indian Journal of Pathology and Microbiology
Year Published: 2022
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