Isolated cases of MG were reported in studies evaluating PD-1 and PD-L1 inhibitors.10, -12 Additionally, case reports of new diagnoses of MG secondary to checkpoint inhibitors have been described in the literature.13, , -16 There are also cases in the literature describing patients with preexisting MG who were treated with checkpoint inhibitors. The gene discussed is CD274; the disease is myasthenia gravis.