 Moderate findings of multiple sclerosis are again seen with periventricular and subcortical white matter FLAIR signal abnormality. Compared to the prior examination, there is a new focus of FLAIR signal abnormality in the subcortical white matter of the left inferior frontal gyrus measuring approximately 9 x 5 mm (series 601, image 34). The ventricles and sulci are within normal limits. The basal cisterns remain patent. There is no midline shift or mass effect. No extra-axial fluid collection is identified. Normal flow-voids are demonstrated in the major intracranial vascular structures.
Findings of multiple sclerosis with mild interval worsening, particularly in the subcortical left inferior frontal gyrus.