History of migraine. Comment a history of cerebral aneurysm. Nonenhanced CT of brain:A there is no evidence of intracranial hemorrhage, edema, mass-effect, midline shift or hydrocephalus. Cortical sulci, ventricular system, CSF cisterns and gray -- white matter differentiation remains within normal. Considering multiple normal prior CT examinations recommend an MRI examination to exclude possibility of pathology not appreciated on an not infused head CT.Calvarium, limited field paranasal sinuses and mastoid air cells are also within normal limits. No change since prior examinations.CTA of intracranial circulation:There is normal visualization of bilateral intracranial vertebral arteries, bilateral pica branches, basilar artery, posterior cerebrals and superior cerebellar arteries.Normal appearing bilateral cavernous internal carotid arteries and their supraclinoid components. There is no visualization of posterior communicating arteries. This is a normal anatomical variation. Bilateral anterior cerebral arteries and including anterior communicating artery remains within normal. Both middle cerebral arteries and their branches are within normal.
1.Normal nonenhanced CT brain and calvarium. Stable since prior study from 2009.2.Negative CTA of intracranial vasculature.