posterior fossa ependymoma posterior fossa group A ependymoma https://github.com/monarch-initiative/mondo/issues/8567 https://www.malacards.org/card/posterior_fossa_group_a_ependymoma NCIT:C186450 MONDO:0956992 GARD:0026779 A posterior fossa ependymoma that arises in the posterior fossa with characteristic DNA methylation patterns, including CpG island hypermethylation, global DNA hypomethylation, reduction of nuclear H3 p.K28me3 (K27me3) expression, and EZHIP overexpression. UMLS:C5670548 DOID:0081254 MEDGEN:1810123