IGHD and Miyoshi myopathy: No major associations were seen, but two exceptions: (1) SHM ≥ 7% associated with a higher rate of CR/sCR compared to patients with SHM < 7% in the nontransplant subset (45.8% vs. 27.3%, respectively; p = 0.026), and (2) IGHD3-3 usage was associated with a better response in the transplant subgroup (n = 10), since 80% of MM patients with an IGH rearrangement choosing this particular gene achieved CR/sCR vs. 36.8% for other IGHD genes (p = 0.019).