Langerhans cell histiocytosis hand-Schuller-Christian disease https://github.com/monarch-initiative/mondo/issues/6754 ICD9:277.89 ICDO:9753/1 SCTID:39795003 This term's classification was reviewed in the context of the Strategic Refinement project (2023) and was determined to be excluded from the 'https://github.com/monarch-initiative/mondo/issues/6754' (MONDO:0005087) ontology branch (https://orcid.org/0000-0001-9310-0163) A multifocal, unisystem form of Langerhans-cell histiocytosis. There is involvement of multiple sites in one organ system, most frequently the bone. Patients are usually young children presenting with multiple destructive bone lesions. multifocal eosinophilic granuloma hand-Schuller-Christian disease MONDO:0020519 GARD:0006567 UMLS:C5574737 classic multifocal Langerhans cell histiocytosis MEDGEN:1804593 Orphanet:99873 multifocal Unisystem Langerhans cell histiocytosis NCIT:C6920 chronic multifocal Langerhans cell histiocytosis hand-SChüller-Christian disease