Balo's concentric sclerosis
- A 40-year-old patient presented with right-sided sensory disturbance. Initial MRI showed a T2-hyperintense lesion in the left precentral gyrus with a rim of diffusion restriction and subtle enhancement.
- Despite steroid therapy, an MRI one month later showed that the lesion has significantly enlarged although the enhancement resolved.
- After two months, following plasma exchange, the lesion had decreased in size although punctate enhancement had developed.