obsolete_Langerhans Cell Histiocytosis true letterer-Siwe disease involving lymph nodes of multiple sites OMIM:604856 Lch letterer-Siwe disease of intrapelvic lymph nodes Replaced by Mondo term MONDO_0018310, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0018310 letterer-Siwe disease of lymph nodes of inguinal region and/or lower limb letterer-Siwe disease involving lymph nodes of head, face and neck letterer-Siwe disease of lymph nodes of head, face and neck ICDO:9753/1 histiocytosis X Langerhans cell histiocytosis (LCH) is a systemic disease associated with the proliferation and accumulation (usually in granulomas) of Langerhans cells in various tissues. letterer-Siwe disease involving lymph nodes of inguinal region and lower limb Langerhan's cell histiocytosis GARD:0006858 ICD9:277.89 ICDO:9754/3 3.88.0 ONCOTREE:LCH SCTID:65399007 ICD10:C96.6 UMLS:C0019621 ICD10:C96.5 MedDRA:10069698 letterer-Siwe disease of lymph nodes of head, face and/or neck Orphanet:389 http://purl.obolibrary.org/obo/MONDO_0018310 Langerhans-cell histiocytosis letterer-Siwe disease involving lymph nodes of axilla and upper limb ICD10:C96.0 letterer-Siwe disease of lymph nodes of axilla and upper limb letterer-Siwe disease of intrathoracic lymph nodes letterer-Siwe disease involving intrathoracic lymph nodes letterer-Siwe disease of lymph nodes of inguinal region and lower limb Langerhans cell histiocytosis, NOS letterer-Siwe disease of lymph nodes of multiple sites Langerhans cell histiocytosis ICDO:9751/1 ICDO:9751/3 letterer-Siwe disease of intra-abdominal lymph nodes UMLS:C0432552 UMLS:C0432553 UMLS:C0432550 UMLS:C0432551 UMLS:C0432554 ICD9:202.5 We follow NCIT in classifying this as a neoplasm but this may be revisited Langerhans cell granulomatosis DOID:2571 NCIT:C3107 letterer-Siwe disease involving intra-abdominal lymph nodes COHD:4278365 letterer-Siwe disease of lymph nodes of axilla and/or upper limb LCH UMLS:C0432549 UMLS:C0432547 letterer-Siwe disease involving intrapelvic lymph nodes UMLS:C0432548 letterer-Siwe disease involving lymph nodes of head, face, and neck ICDO:9752/1 letterer-Siwe disease of spleen Langerhans cell histiocytosis, Not otherwise specified letterer-Siwe disease of lymph nodes of inguinal region amd/or lower limb letterer-Siwe disease involving spleen EFO:1000318