Presentation
Left hemianopia, hemisensory loss
Patient Data
There are abnormal signal areas at the right occipital lobe, thalami, inferomedial temporal lobe where are supplied by the right posterior cerebral artery. They elicit a high signal on DWI, a low signal on ADC, a high signal on T2/Flair.
The loss of normal flow void of the right PCA that reveals a high signal on T2/FLAIR. Non-contrast-enhanced MRA also demonstrates a segmental occlusion of the right PCA.
The slightly mass effect into the right temporal horn of the lateral ventricle because of cytotoxic cerebral edema.
Case Discussion
The MRI findings are in keeping with acute posterior cerebral artery infarct which is a type of posterior circulation stroke.
The posterior cerebral arteries are the terminal branches of the basilar artery and supply the occipital lobes and posteromedial temporal lobes. The posterior thalamoperforator arteries which supply blood to the midbrain and thalamus are branches from P1.