Several genetic alterations shared between MM and other malignancies, such as BRAF V600E, BRCA1/2, and IRF4 mutations, have been suggested to correlate with a potentially more favorable MM prognosis [26, 27, 28, 29, 30, 31, 32], for which further investigation is warranted. The gene discussed is BRCA1; the disease is Miyoshi myopathy.