Sharp head pains bilaterally for the past 7 months. MRI: There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. 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 orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.MRA: There is a 3 mm diameter outpouching arising from the posteromedial aspect of the left paraclinoid internal carotid artery, with a 2 mm wide neck. There is also an small outpouching of contour deformity of the lateral aspect of the right opthalmic internal carotid artery segment. There is no evidence of significant steno-occlusive lesions.
1. No evidence of intracranial hemorrhage, mass, or acute infarct. 2. Incidental 3 mm diameter paraclinoid left internal carotid artery aneurysm and small aneurysm versus prominent infundibulum of the right opthalmic internal carotid artery segment. 