Figure 1 Axial magnetic resonance fluid attenuated inversion recovery images and T1‐weighted magnetic resonance images (MRI) with gadolinium enhancement before (A) and after (B) infliximab treatment. Abnormal MRI features were clearly retained by conventional treatment (A); however, the area was reduced by infliximab (B). Motor evoked potentials evoked by transcranial magnetic stimulation were absent in the left arm before infliximab treatment (C), but appeared after infliximab treatment (D).