“In frame” deletions of variable extent, mostly in the rod domain of the dystrophin gene, have been reported before in individuals with no or with very mild symptoms, such as elevated serum CK or myalgia (Ferreiro et al. 2009; Gospe et al. 1989; Ishigaki et al. 1996; Melis et al. 1998). The gene discussed is DMD; the disease is Myalgia.