obsolete_ependymoma true ICD10:D43.2 tanycytic ependymoma (histologic variant) ONCOTREE:EPM Orphanet:251636 ependymoma WHO grade II ependymal neoplasm papillary ependymoma (histologic variant) ICDO:9391/3 MedDRA:10014967 GARD:0006353 MESH:D004806 benign ependymoma UMLS:CN201941 http://purl.obolibrary.org/obo/MONDO_0016698 Replaced by Mondo term MONDO_0016698, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0016698 A WHO grade II, slow growing tumor of children and young adults, usually located intraventricularly. It is the most common ependymal neoplasm. It often causes clinical symptoms by blocking cerebrospinal fluid pathways. Key histological features include perivascular pseudorosettes and ependymal rosettes. (WHO) 3.88.0 ependymoma, benign clear cell ependymoma (histologic variant) ependymoma, familial epithelial ependymoma UMLS:C0014474 DOID:4844 NCIT:C3017 WHO grade II ependymal tumor