Multiple sclerosis, interval development of a new small callosal lesion on a 2-year follow-up exam

Multiple sclerosis, interval development of a new small callosal lesion on a 2-year follow-up exam. Multiple immediate periventricular small punctate high signal intensity plaques are noted on sagittal FLAIR scans, characteristic for MS. Also present are several plaques within the frontal and occipital white matter. Note the interval development of a small plaque with a long flat border along the ependymal surface of the more anterior part of the lateral ventricle, seen on the lower scan but not present on the upper scan (obtained 2 years earlier).

Multiple sclerosis, interval development of a new small callosal lesion on a 2 year follow-up exam 2

Part of the on-line supplement to Neuroradiology – The Essentials with MR and CT (© 2015)