. "chronic Histiocytosis X"@en . . "SNOMEDCT_US_2021_09_01:60657004"^^ . "histiocytosis"^^ . "DOID:3344"^^ . . "DOID:3405"^^ . "MESH:D015614"^^ . "A lymphatic system disease that is characterized by an excessive number of histiocytes."^^ . "UMLS_CUI:C0019618"^^ . . "disease_ontology"^^ . "Hand Schuller Christian disease"@en . "NCI:C3106"^^ .