Migraine with aura, intractable, without status migrainosus [G43.119], Reason for Study: ^Reason: persistent headaches consistent with migraine - check for secondary causes - AVM? Exam normal History: see above Brain MRINo evidence of acute ischemic or hemorrhagic lesion.The quadrigeminal cistern is prominent without showing definitive mass effects toward adjacent brain, thus likely represent arachnoid cyst.The ventricles are symmetric and unremarkable. The gray-white matter differentiation is normal. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.Brain MRA3D time of flight MOTSA MRA brain images with maximum intensity projections of the anterior/posterior intracranial circulation demonstrate normal ICAs, MCAs and ACAs. Vertebrobasilar system appears to be normal.No intracranial arterial aneurysm. No definitive intracranial luminal stenosis or occlusion.
1. No evidence of acute ischemic or hemorrhagic lesion.2. Likely quadrigeminal cistern arachnoid cyst.3. Normal brain MRA 