Langerhans Cell Histiocytosis, also known as histiocytosis x, is related to non-langerhans-cell histiocytosis and histiocytosis, and has symptoms including fever An important gene associated with Langerhans Cell Histiocytosis is BRAF (B-Raf Proto-Oncogene, Serine/Threonine Kinase), and among its related pathways/superpathways are MIF Mediated Glucocorticoid Regulation and Class I MHC mediated antigen processing and presentation. The drugs Mycophenolic acid and Anti-Infective Agents have been mentioned in the context of this disorder. Affiliated tissues include spleen and bone marrow, and related phenotypes are immune system and respiratory system