BTG3 and rhabdomyolysis: They initially reported that the likely cause of her rhabdomyolysis was viral myositis, however continued to work up different etiologies of rhabdomyolysis by ordering a muscle biopsy, ANA IFA with reflex, ESR/CRP, myositis panel, C3/C4, SSA/SSB, RF, and aldolase (Table 2).