The rank of the positive expression rate in the newly diagnosed MM patients was MAGE-C1/CT7 (88.5%, 69/78) > MAGE-C2/CT10 (82.1%, 64/78) > MAGE-A3 (76.9%, 60/78) > SSX-2 (25.6%, 20/78). Here, SSX2 is linked to Miyoshi myopathy.