A similar phenomenon has been already described in several individuals, who harbored point pathogenic variants in the CLCN1 [31] or SCN4A [32] genes together with expansion in the CNBP gene, and therefore, all our patients with or without point pathogenic variants in these genes were tested for DM1 and DM2. This evidence concerns the gene CLCN1 and myotonic dystrophy type 2.