Localized swelling, mass and lump, head [R22.0], Reason for Study: ^Reason: LEFT HEMIPARESIS ETIOLOGY History: LEFT HEMIPARESIS Brain MRINo evidence of acute ischemic or hemorrhagic lesion on the scan.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. The midline structures and cranial-cervical junction are normal. The mastoid air cells are clear. Mucosal thickening and retention cyst is on bilateral maxillary sinuses. There is a prosthetic eyeball on the left side.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.
1. No evidence of acute ischemic or hemorrhagic lesion.2. Normal brain MRI and normal neck MRA 