Cavernous malformation and aneurysm surveillance. MRI: There is an unchanged subcentimeter lesion with susceptibility effect in the left cerebellar hemisphere with an associated developmental venous anomaly. There is also an unchanged punctate focus of susceptibility effect in the posterior right temporal lobe. There are a few scattered foci of T2 hyperintensity in the cerebral white matter. There is no evidence of intracranial hemorrhage or acute infarct. 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 orbits, skull, and scalp soft tissues are grossly unremarkable. There is fluid in the left maxillary sinus.MRA: There is a left paraclinoid internal carotid artery saccular aneurysm, which measures up to 3 mm in width. There is a fetal right posterior cerebral artery, which is an anatomic variant. There is no evidence of significant steno-occlusive lesions.
1. Unchanged subcentimeter cavernous malformation with an associated developmental venous anomaly.2. An unchanged punctate focus of susceptibility effect in the posterior right temporal lobe may also represent a cavernous malformation or development venous anomaly. 3. Unchanged nonspecific scattered foci of T2 hyperintensity in the cerebral white matter.4. Unchanged left paraclinoid internal carotid artery saccular aneurysm, which measures up to 3 mm in width.