CD38 and Miyoshi myopathy: The treatment of MM involves the use of steroids; standard chemotherapy (including cyclophosphamide, melphalan, and bendamustine); proteasome inhibitors such as bortezomib and ixazomib [7]; anti-CD38 monoclonal antibodies (eg, daratumumab and isatuximab), and autologous stem cell transplantation (ASCT) [8].