History of nasopharyngeal cancer: aneurysm and microhemorrhage surveillance. MRI: There is no evidence of intracranial hemorrhage, mass, or acute infarct. There are numerous intraparenchymal foci of infratentorial and supratentorial susceptibility effect. 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.MRA: There is a 3 mm diameter posteromedially directed right anterior genu of the internal carotid artery aneurysm. There is no evidence of significant steno-occlusive lesions.
1. Numerous intraparenchymal foci of infratentorial and supratentorial susceptibility effect are related to prior embolic microhemorrhages. 2. Unchanged 3 mm diameter posteromedially directed right anterior genu of the right internal carotid artery aneurysm. 