 Redemonstrated are innumerable supratentorial and infratentorial foci of susceptibility effect with heterogeneous associated T1 and T2 signal consistent with cavernous malformations. These are essentially unchanged in size, number, and appearance compared with the prior exam. There is no interval perilesional edema. For example, the largest lesion is located within the right basal ganglia, is unchanged in size, and measures up to 1.7 cm. Somewhat large lesions within the right hemi-midbrain as well as the bilateral pons are also unchanged. There is no evidence of acute intracranial hemorrhage or acute infarct. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The skull and scalp soft tissues are unremarkable. Previously demonstrated minimal mucosal thickening within the maxillary sinuses and mild fluid within the mastoid air cells has improved.
Innumerable cavernous malformations are essentially unchanged in size, number, and appearance. There is no interval perilesional edema.