In an independent series, including 5 healthy, 15 MGUS and 15 MM subjects, we found that the amount of CD64 was higher in MM than in MGUS- (17.5 ± 1.6 versus 11.4 ± 0.4, p = 0.001) or healthy HDNs (MFI, 17.5 ± 1.6 versus 9.4 ± 0.7 a.u., p = 0.004, ANOVA test, Fig. 3C). The gene discussed is FCGR1A; the disease is Miyoshi myopathy.