History of 5mm aneurysm: surveillance. MRI: There is no evidence of intracranial hemorrhage or acute infarct. There is an unchanged left anterior temporal convexity arachnoid cyst. There is a stable punctate nonspecific focus of susceptibility in the left basal ganglia. 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 an unchanged fusiform aneurysm arising from the M1 segment of the right middle cerebral artery that measures up to 5 mm in diameter. There is no evidence of significant steno-occlusive lesions.
1. No evidence of acute intracranial hemorrhage or acute infarct.2. Unchanged fusiform aneurysm arising from the M1 segment of the right middle cerebral artery that measures up to 5 mm in diameter.