Aneurysm and cavernous malformation: headache, light flashes. MRI: There is a punctate focus of susceptibility effect in the left parietal lobe white matter with an adjacent developmental venous anomaly. 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, paranasal sinuses, and scalp soft tissues are grossly unremarkable.MRA: There is a medially-directed outpouching from the right internal carotid artery adjacent to the opthalmic artery origin that measures up to 5 mm, with a 2 mm wide neck. There is no evidence of significant steno-occlusive lesions.
1. A punctate focus of susceptibility effect in the left parietal lobe white matter with an adjacent developmental venous anomaly likely represents a cavernous malformation. 2. A right opthalmic artery saccular aneurysm measures up to 5 mm.