CCND1 and Miyoshi myopathy: Most MM cases either harbour translocations involving the immunoglobulin heavy chain (IgH) locus, which results in the expression of juxtaposed genes including Cyclin D1 (CCND1, 11q13), FGF3/MMSET (4p16.3), Cyclin D3 (CCND3, 6p21), MAFC (16q23), and MAFB (20q11) [3], or are hyperdiploid, characterised by multiple chromosomal gains, preferentially trisomy of chromosomes 3, 5, 7, 9, 11, 15, 19, and 21 [1, 4].