assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0080372 IAO:0000115 An inflammatory myofibroblastic tumor composed of epithelioid or round cells with a characteristic perinuclear or nuclear membrane staining pattern with ALK immunohistochemistry, frequently dispersed in myxoid stroma with prominent neutrophils or lymphocytes, and often absence of plasma cells. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pubmed/21164297""}]}"