Mutations in IDH1 and IDH2 genes are commonly found in low-grade gliomas
Loss of both IDH genes combined with loss of chromosome arms 1p and 19q indicates the tumor is an oligodendroglioma
Loss of TP53 and ATRX characterizes astrocytomas
Genes EGFR, TERT, and PTEN, are commonly altered in gliomas and are useful in differentiating tumor grade and biology

Specific types
Anaplastic astrocytoma, Anaplastic oligodendroglioma, Astrocytoma, Central neurocytoma, Choroid plexus carcinoma, Choroid plexus papilloma, Choroid plexus tumor, Colloid cyst, Dysembryoplastic neuroepithelial tumour, Ependymal tumor, Fibrillary astrocytoma, Giant-cell glioblastoma, Glioblastoma multiforme, Gliomatosis cerebri, Gliosarcoma, Hemangiopericytoma, Medulloblastoma, Medulloepithelioma, Meningeal carcinomatosis, Neuroblastoma, Neurocytoma, Oligoastrocytoma, Oligodendroglioma, Optic nerve sheath meningioma, Pediatric ependymoma, Pilocytic astrocytoma, Pinealoblastoma, Pineocytoma, Pleomorphic anaplastic neuroblastoma, Pleomorphic xanthoastrocytoma, Primary central nervous system lymphoma, Sphenoid wing meningioma, Subependymal giant cell astrocytoma, Subependymoma, Trilateral retinoblastoma. Treatment
A medical team generally assesses the treatment options and presents them to the person affected and their family. Various types of treatment are available depending on tumor type and location, and may be combined to produce the best chances of survival:
Surgery: complete or partial resection of the tumor with the objective of removing as many tumor cells as possible. Radiotherapy: the most commonly used treatment for brain tumors; the tumor is irradiated with beta, x rays or gamma rays. Chemotherapy: a treatment option for cancer, however, it is not always used to treat brain tumors as the blood-brain barrier can prevent some drugs from reaching the cancerous cells.
Prax may refer to:

Prax (malware), or Regin, a malware and hacking toolkit
Prax Group, operators of Lindsey Oil Refinery, North Killingholme, North Lincolnshire, England
Praso, Italy (German: Prax), a former comune in Trentino, Italy
Mike Prax (born 1956), American politician from Alaska
Valentine Prax (1897–1981), French expressionist and cubist painter