title: Histiocytosis X: a histological and histogenetic study.
mesh_terms: D000293:Adolescent; D001842:Bone and Bones / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D046508:Culture Techniques; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D006099:Granuloma / Q000473:pathology; D006644:Histiocytes / Q000201:enzymology / Q000276:immunology / Q000648:ultrastructure*; D006646:Histiocytosis, Langerhans-Cell / Q000209:etiology / Q000473:pathology* / Q000503:physiopathology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007801:Langerhans Cells / Q000276:immunology / Q000648:ultrastructure*; D008099:Liver / Q000473:pathology; D008168:Lung / Q000473:pathology; D008198:Lymph Nodes / Q000473:pathology; D012867:Skin / Q000473:pathology; D013154:Spleen / Q000473:pathology