While many specific lncRNAs are proposed to have prognostic relevance in MM [120,122], even studies examining the same data sets identify different lncRNAs with prognostic potentials [120,121], and e.g. MALAT1 has been proposed as a prognostic biomarker, yet studies report diverging results [66,68], emphasising the need for validation studies. The gene discussed is MALAT1; the disease is Miyoshi myopathy.