Later, using a different specimen treatment method and, notably, IgG1 TG2 monoclonal antibodies instead of the polyclonal TG2 antibodies used by Choi et al., and Gendek et al. [60] observed intense TG2 staining in single, damaged muscle fibers and capillary endothelia in muscle biopsies only from patients with PM and DM, not healthy controls; however, they did not observe TG2 in the sarcolemma or endomysium. Here, TGM2 is linked to dermatomyositis.