disease causes dysfunction of disease has location Langerhans cell splenic disorder histiocytosis leukocyte disorder Langerhans cell histiocytosis https://www.malacards.org/card/langerhans_cell_histiocytosis_2 Lch OMIM:604856 EFO:1000318 Langerhans-cell histiocytosis SCTID:65399007 Langerhans cell histiocytosis, Not otherwise specified Langerhans cell histiocytosis (LCH) is a systemic disease associated with the proliferation and accumulation (usually in granulomas) of Langerhans cells in various tissues. histiocytosis X ICDO:9751/3 ICDO:9753/1 ICDO:9751/1 MEDGEN:5568 NCIT:C3107 MONDO:0018310 We follow NCIT in classifying this as a neoplasm but this may be revisited ICD9:202.5 GARD:0006858 Langerhans cell granulomatosis DOID:2571 ICD9:277.89 Orphanet:389 icd11.foundation:1388720498 LCH icd11.foundation:216625985 NORD:1348 Langerhans cell histiocytosis MedDRA:10069698 Langerhans cell histiocytosis, NOS ICDO:9752/1 ONCOTREE:LCH ICDO:9754/3 UMLS:C0019621 NANDO:2200031 dendritic cell tumor phagocytic cell dysfunction