Disorientation, unspecified [R41.0], Reason for Study: ^Reason: CT head with acute versus subacute infarct in the right occipital lobe History: see above Brain MRIRestricted diffusion lesions on bilateral frontal and parietal lobes as well as the right occipital lobe. Especially the right occipital lobe lesion show susceptibility artifacts indicating hemorrhagic conversion.There are scattered FLAIR/T2 high signal intensity lesions on periventricular white matter indicating non specific small vessel ischemic disease.The ventricles, sulci and cisterns are unremarkable. The midline structures and cranial-cervical junction are normal. 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. The right distal PCA is not clearly visualized. Otherwise basilar artery and the left PCA appear to be normal.
1. Right occipital, bilateral frontal and bilateral parietal subacute ischemic infarction with evidence of hemorrhagic conversion on the right occipital lobe lesion.2. Non visualization of the distal right PCA which corresponding to the right occipital ischemic infarction.3. Minimal non specific small vessel ischemic disease. 