To determine the accuracy of MPseq in comparison to our PCN FISH panel (Supplemental Table 1) in the detection of recurrent, primary MM abnormalities (IGH rearrangement and/or hyperdiploidy), we analyzed DNA extracted from either a fixed cell pellet (FCP) from a chromosome study (n = 8), from fresh (n = 18) or frozen (n = 5) BM aspirates or from fresh BM specimens that had been flow sorted (n = 24) or subjected to CD138 + magnetic enrichment (n = 15) (Supplemental Fig. 1, Tables 1, 2). Here, SDC1 is linked to Miyoshi myopathy.