angiocentric glioma true ANGL Monomorphus angiocentric glioma NCIT:C92552 http://www.case.edu/EpSO.owl#AngiocentricGlioma ICD10:C71.9 ICDO:9431/1 Orphanet:251671 UMLS:C2363903 angiocentric neuroepithelial tumor MONDO:0016705 ONCOTREE:ANGL angiocentric glioma (WHO grade I) Angiocentric glioma (AG) is an extremely rare slow-growing glial neoplasm of the central nervous system, usually arising in a superficial location in the cerebrum, affecting all ages and both sexes, and characterized by intractable seizures and headaches, with most cases being cured by surgical incision alone and therefore having a good prognosis. low grade glioma