 Redemonstrated are multiple foci of susceptibility abnormality consistent with multiple cerebral cavernous malformations. A lesion along the anterior surface of the left pons has again increased in size, now measuring up to 10 mm (utilizing axial T2), previously 5 mm. There is a new, 3 mm focus of T2/susceptibility hypointensity within the right posterolateral pons, which was not present on the comparison study. Neither demonstrate perilesional edema. Other supratentorial and infratentorial lesions are not significantly changed. There is no evidence of acute intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. There is an unchanged 12 mm wide extra-axial CSF space overlying the medial right cerebellar hemisphere, which may represent an arachnoid cyst versus minimally prominent cisterna magna, unchanged in appearance. The major cerebral flow voids are intact. The skull, paranasal sinuses, and scalp soft tissues are unremarkable.
Redemonstrated are multiple foci of susceptibility abnormality consistent with multiple cerebral cavernous malformations. A lesion along the anterior surface of the left pons has again increased in size, now measuring up to 10 mm, previously 5 mm. There is a new, 3 mm focus of T2/susceptibility hypointensity within the right posterolateral pons, which was not present on the comparison study. Neither demonstrate perilesional edema. Other supratentorial and infratentorial lesions are not significantly changed.