History of gait balance, tinnitus, lightheadedness with recently discovered cavernous malformation; please compare to June 2016 examination. There is redemonstration of a small left temporal lobe lesion with signal characteristics compatible with a small congenital cavernous malformation measuring up to 7 mm on the T1 weighted sequences, not significant changed. There is no associated significant perilesional edema or mass effect. A small adjacent curvilinear area of enhancement compatible with a developmental venous anomaly also appears unchanged.There is a mildly prominent curvilinear area of increased susceptibility along a left occipital sulcus (802/10) without associated asymmetric vessel prominence on postcontrast images or associated parenchymal abnormality and which is favored to reflect a prominent vessel.Patchy areas of increased T2/FLAIR signal within the periventricular and subcortical white matter are nonspecific but compatible with moderate chronic small vessel ischemic changes, not significantly changed. There is no restricted diffusion to suggest acute ischemic infarction. The ventricles are stable in size and configuration. The basal cisterns remain patent. There is no midline shift or herniation. The major cerebral flow voids are intact. There is persistent mild, patchy opacification of the right mastoid air cells. There is mild patchy opacification of the ethmoid air cells.
Subcentimeter left temporal lobe cavernous malformation with associated developmental venous anomaly, not significantly changed compared to 6/6/2016 and without associated perilesional edema or mass effect.