Snc Who 2007

The 2007 WHO Classification of Tumours of the Central Nervous System introduces several new tumor entities and variants based on an international working group consensus. Eight new entities are added, including angiocentric glioma and papillary glioneuronal tumor. Histological variants are also included if they have distinct characteristics in age distribution, location, genetics, or clinical behavior. The classification aims to standardize the definition of brain tumors internationally for research and clinical purposes.