dementia No evidence of acute ischemic or hemorrhagic lesion on this scan.Comparing to prior scan, there is a new high signal foci on the right pre central gyrus white matter on FLAIR images. However, the lesion does not show restricted diffusion or susceptibility artifacts, thus, this lesion is likely to represent age indeterminate non specific small vessel ischemic lesion.The vertebrobasilar system appears to be slightly enlarged and tortuous indicating atherosclerotic changes.Previously identified right side medulla mass like lesion is not shown on this scan, most likely related to thick slice of today's scan.The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
No evidence of acute ischemic or hemorrhagic lesion on this scan.A new focal high signal lesion on the right frontal lobe pre central gyrus white matter without evidence of restricted diffusion indicate non specific small vessel ischemic lesion.