53 years, Male, right facial pain and lip numbness. No restricted diffusion to suggest acute ischemia. No intracranial hemorrhage. No intracranial mass or mass-effect. The ventricles are within normal limits in size and configuration. There is prominent susceptibility effect and T1 shortening indicating mineralization involving the bilateral thalami and to a lesser extent basal ganglia, primarily involving the globi pallidi. There is also mild T1 hypointensity and T2 hyperintensity involving the globi pallidi. No significant brain parenchymal signal abnormalities are otherwise appreciated.There is no abnormal parenchymal or meningeal enhancement. No abnormal cranial nerve enhancement. There is contact of the right superior cerebellar artery with the trigeminal nerve in the anterior cisternal segment and along the posterior aspect of the right Meckel's cave. No lesions within the brainstem are appreciated.There is minimal scattered paranasal sinus opacification. Bone marrow signal and extracranial soft tissues are within normal limits.
1. Prominent mineralization/calcification of the bilateral thalami and to a lesser degree basal ganglia which is nonspecific and can be seen with a variety of acquired and inherited metabolic disorders as well as toxic injuries.2. There is contact of the right superior cerebellar artery with the proximal right trigeminal nerve. Otherwise no masses or lesions within the brainstem or visualized course of the trigeminal nerves are appreciated. Remainder of the brain parenchyma is also unremarkable.