PCNA and neoplasm: For further study, the MAGE-A subtype expression in CMTs associated with a few other markers related to tumor aggressiveness or apoptosis, such as Caspase 3, PCNA or ki-67 and the function of this protein family should be continue studied in a large number of samples to fully clarify whether MAGE-A is involved in apoptosis or cell proliferation during tumor growth.