Multicentric Reticulohistiocytosis, also known as lipoid dermatoarthritis, is related to histiocytosis and non-langerhans-cell histiocytosis. An important gene associated with Multicentric Reticulohistiocytosis is CD68 (CD68 Molecule), and among its related pathways/superpathways are Innate Immune System and Class I MHC mediated antigen processing and presentation. Affiliated tissues include skin and bone marrow, and related phenotypes are arthritis and skin nodule