IFNB1 and myeloid sarcoma: The list of frequently applied DMTs for relapsing form of MS includes Ocrelizumab- a humanized monoclonal antibody against CD20 molecule of the B cell surface [89], Natalizumab- an α4β1 integrin inhibitor [90], Fingolimod- a S1P inhibitor that blocks infiltration of autoreactive lymphocytes into the CNS [91], dimethyl-fumarate [92], Teriflunomide [93], interferon beta (IFN-β) [94], glatiramer acetate [95].