Items tagged “who classification”
4 results found
Article
WHO grading of CNS tumors
WHO (World Health Organization) grading of CNS tumors depends on the specifics of each entity; see WHO classification of CNS tumors.
Historically grading was based on histological characteristics such as cellularity, mitotic activity, pleomorphism, necrosis, and endothelial proliferation, howe...
Article
Papillary glioneuronal tumor
Papillary glioneuronal tumors are rare well circumscribed complex solid cystic supratentorial lesion with an indolent clinical course. They are often considered part of the heterogeneous group of tumors known as long-term epilepsy-associated tumors (LEATs).
Epidemiology
These tumors typically ...
Article
Diffuse glioneuronal tumor with oligodendroglioma like features and nuclear clusters
Diffuse glioneuronal tumor with oligodendroglial features and nuclear clusters is a glioneuronal tumor entity with a characteristic methylation profile 1.
Terminology
The exact nature of diffuse glioneuronal tumors with oligodendroglial features and nuclear clusters has yet to be well defined....
Article
Diffuse astrocytoma MYB or MYBL1 altered
Diffuse astrocytoma MYB or MYBL1 altered is a newly recognized IDH wildtype pediatric-type diffuse low-grade glioma included in the 5th Edition (2021) WHO brain tumor classification 1. It has a generally favorable prognosis and is often associated with seizures 4.
Epidemiology
Diffuse astrocy...