Unspecified transient cerebral ischemia [435.9], Reason for Study: ^Reason: eval for stroke History: L sided paresthesias Brain MRI:There is no evidence of acute ischemic or hemorrhagic lesion on this scan.Few scattered high signal foci on FLAIR images on subcortical white matter are non specific.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 mucosal thickening of bilateral maxillary sinuses and partial opacification of the right mastoid air cells are seen.Brain MRA:3D 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 MRA:3D MRA neck post-gadolinium images with maximum intensity projections of the cervical vasculature demonstrate aberrant right subclavian artery which arises from distal aortic arch, and the right vertebral artery arises from the aberrant right subclavian artery.The right CCA, left CCA, left subclavian artery and left vertebral artery origin appear to be normal.Left vertebral artery is hypoplastic.There is normal flow enhancement through the bilateral common carotid, carotid bifurcations, internal/external carotid, and vertebral arteries. C Spine MRI:The cervical spine is straightened with loss of normal lordosis.The cranial-cervical junction is normal. The cervical spine alignment is anatomic. The vertebral body height is preserved. The bone marrow and end plates demonstrate a normal MR appearance. The signal of the visualized cord is normal. There is no evidence of abnormal enhancement, cord compression or mass.Degenerative changes are specified by the intervertebral level as follows: C2-C3: no neuroforaminal narrowing or spinal stenosis. C3-C4: focal central bulging of disc, no neuroforaminal narrowing or spinal stenosis. C4-C5: diffuse bulging of disc, no neuroforaminal narrowing or spinal stenosis. C5-C6: diffuse bulging of disc with central focal protrusion of disc which abuts thecal sac, no neuroforaminal narrowing or spinal stenosis. C6-C7: central to left broad based disc protrusion which minimally narrows left side lateral recess, no spinal stenosis. C7-T1: no neuroforaminal narrowing or spinal stenosis.
1. No acute ischemic or hemorrhagic lesion on this scan.2. Normal brain MRA.3. Aberrant right subclavian artery otherwise unremarkable neck MRA4. Multifocal various degree degenerative changes of Cervical spine including focal disc herniation at the level of C56, minimal left side lateral recess narrowing at the level of C67. 