The amount of a receptor-type tyrosine-protein kinase FLT3 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes id OBA_2057738 (level of receptor-type tyrosine-protein kinase FLT3 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid receptor-type tyrosine-protein kinase FLT3 (human) amount.