CD34 and Miyoshi myopathy: The onset of ES has been associated with ASCT for solid tumors (breast cancer), autoimmune diseases (multiple sclerosis) and monoclonal gammopathies (MM, AL amyloidosis and POEMS syndrome) that included the use of post-ASCT G-CSF, a high infused CD34+ cell dose, earlier and more rapid granulocyte recovery and the introduction of bortezomib and immunomodulatory drugs as induction therapy in MM [18,23–26,32–34].