Anesthesia of skin [R20.0], Reason for Study: ^Reason: stroke vs. stenosis History: left numbness Brain MRINo evidence of acute ischemic or hemorrhagic lesion.Multiple scattered high signal intensities on FLAIR/T2 images at bilateral periventricular white matter indicate non specific small vessel ischemic disease.The ventricles, sulci and cisterns are symmetric and unremarkable. 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.Neck MRA:3D MRA neck post-gadolinium images with maximum intensity projections of the cervical vasculature demonstrate, although tortuous course, 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 carotid, and vertebral arteries. There is web like lesion on the proximal left external carotid artery.
1. No evidence of acute ischemic or hemorrhagic lesion.2. Non specific small vessel ischemic disease.3. Web like structure on the proximal left ECA, otherwise there is no significant luminal narrowing or occlusion of major vessel on carotico-cervical arterial system. Vertebrobasilar system appears to be normal. 