Other transient cerebral ischemic attacks and related syndromes [G45.8], Reason for Study: ^Reason: TIA, please evaluate for diffusion restriction or stenosis History: Left leg and arm tingling, transient Brain MRI:No evidence of acute ischemic or hemorrhagic lesion.The ventricles, sulci and cisterns 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. The midline structures and cranial-cervical junction are normal. The mastoid air cells are clear. Minimal mucosal thickening is seen on frontal sinus.About 7mm tonsilar ectopia is seen.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.Neck MRA3D MRA neck post-gadolinium images with maximum intensity projections of the cervical vasculature demonstrate normal flow enhancement in a normal aortic arch origin of the right brachiocephalic, left common carotid, and left subclavian arteries. The vertebral artery origins are normal. There is normal flow enhancement through the bilateral common carotid, carotid bifurcations, internal/external carotid, and vertebral arteries. Cervical spine MRIThere is minimal bulging of disc C67 level without showing evidence of spinal canal stenosis. Disc dessication is seen at C23 to CT7T1 level.No evidence of abnormal enhancement.There is normal cervical lordosis. The cranial-cervical junction is normal. The spine alignment is anatomic. The vertebral body height is preserved. The bone marrow and end plates demonstrate a normal MR appearance. The cord signal is normal. The epidural space, thecal sac, and spinal cord are preserved with no evidence of spinal canal/neural foraminal stenosis, cord compression or myelopathy.
1. Tonsilar ectopia as described above.2. No evidence of acute ischemic or hemorrhagic lesion.3. Normal brain and Neck MRA4. Unremarkable c spine MRI. 