 Several sequences are mildly limited by motion artifact. There is no restricted diffusion to suggest acute infarction. There is redemonstration of increased T2/FLAIR signal abnormality within the left mesial temporal lobe including the left inferior aspect of the left hippocampal body and left parahippocampal gyrus which is not significantly changed since the 3/8/2011 exam. There is a new subcentimeter focus of increased T2/FLAIR signal within the right head of the caudate likely representing a new but chronic lacunar infarct. No additional new intraparenchymal focal signal abnormalities are identified. There is no evidence of intracranial hemorrhage or mass effect. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. Small mucous retention cysts are present within the bilateral maxillary sinuses. The midline structures and craniocervical junction are within normal limits.
1.No evidence of acute infarct. T2/FLAIR hyperintensity involving the right caudate head likely represents a chronic lacunar infarct but is new since 8/11/2011.2.Redemonstration of signal abnormality in the left medial temporal lobe which is favored to represent sequela of prior injury.