 Images are motion degraded. Fast imaging techniques were attempted. Given this caveat:Previously demonstrated restricted diffusion involving the left cerebral peduncle and midbrain has slightly diminished, with a small subtle focus of enhancement now notable involving the left cerebral peduncle, findings consistent with evolution. There is a small collection of new restricted diffusion involving the posterior left frontal lobe (best demonstrated series 501 images 259-260). All these foci are associated with T2 hyperintensity, however without susceptibility abnormality.The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. There are no masses, mass effect or midline shift. The pituitary gland is normal in size. There are no extraaxial fluid collections or subdural hematomas. Flow voids are present within the major vessels indicating patency. The paranasal sinuses and mastoid air cells are clear.
Previously demonstrated restricted diffusion involving the left cerebral peduncle and midbrain has slightly diminished, with a small subtle focus of enhancement now notable involving the left cerebral peduncle, findings consistent with evolution. There is a small collection of new restricted diffusion involving the posterior left frontal lobe (best demonstrated series 501 images 259-260). All these foci are associated with T2 hyperintensity, however without susceptibility abnormality.