assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:8243 IAO:0000115 A central nervous system melanocytic neoplasm that is characterized as an extra-axial well-encapsulated malignant tumour with diffuse meningeal growth and dark coloration (due to high melanin contents). xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://neurosurgery.directory/2020/10/04/diffuse-leptomeningeal-melanocytosis/""}]}" 1 0 graph DOID:8243 oio:hasDbXref UMLS_CUI:C1266114 xsd:string 1 0 graph DOID:8243 oio:id DOID:8243 xsd:string 1 0 graph DOID:8243 oio:hasDbXref ICDO:8728/3 xsd:string 1 0 graph DOID:8243 rdfs:subClassOf DOID:4955 _IRI 1 0 graph DOID:8243 oio:hasDbXref NCI:C6891 xsd:string 1 0 graph DOID:8243 oio:inSubset obo:doid#DO_cancer_slim _IRI 1 0 graph DOID:8243 oio:inSubset obo:doid#NCIthesaurus _IRI 1 0 graph DOID:8243 rdfs:label meningeal melanomatosis xsd:string 1 0 graph DOID:8243 oio:hasExactSynonym Leptomeningeal melanomatosis @en 1 0 graph DOID:8243 rdf:type owl:Class _IRI 1 0 graph DOID:8243 oio:hasOBONamespace disease_ontology xsd:string 1 0 graph DOID:8243 oio:hasDbXref SNOMEDCT_US_2023_03_01:128731008 xsd:string