CD79A and Miyoshi myopathy: Stork et al. retrospectively analyzed the risk factors for extramedullary relapse in NDMM patients and found that younger age (<65 years; OR = 4.38, p < 0.0001), higher LDH levels (>5 μkat/L; OR = 2.07, p < 0.0001), >2 osteolytic lesions (OR = 2.21, p < 0.001), and IgA (OR = 1.53, p = 0.009) or nonsecretory type of MM (OR = 2.83, p = 0.007) at the time of MM diagnosis were the main risk factors for extramedullary relapse in NDMM patients [9].