Cavernous malformation surveillance.. There is an unchanged lesion centered in the right cerebral peduncle that measures up to approximately 15 mm with circumferential susceptibility effect that contains a loculated area of intrinsic T1 hyperintensity as well as patchy enhancement. There appears to be at least one developmental venous anomaly associated with the lesion, but there is no surrounding vasogenic edema. There is no evidence of intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
A lesion centered in the right cerebral peduncle is unchanged and likely represents a cavernous malformation associated with at least one developmental venous anomaly.