"neoplasm of optic nerve"@en . _:vb50951915 . . . _:vb50951914 . "optic nerve neoplasm"^^ . . "SNOMEDCT_US_2021_09_01:126968005"^^ . "MESH:D019574"^^ . . _:vb50951915 . _:vb50951912 _:vb50951915 . _:vb50951913 . "DOID:3419"^^ . _:vb50951912 . _:vb50951914 _:vb50951913 . "NCI:C4801"^^ . . "disease_ontology"^^ . _:vb50951913 . _:vb50951914 . "UMLS_CUI:C0524802"^^ . _:vb50951913 . "tumor of Second Cranial nerve"@en . "Tumour of optic nerve"@en . _:vb50951912 . _:vb50951913 . _:vb50951915 _:vb50951914 . _:vb50951912 .