Medically reviewed by Nicholas R. Metrus, MD Key Takeaways The posterior communicating artery (PCOM) connects to the internal ...

A 22 year-old man developed the abrupt onset of a severe headache followed by nausea and vomiting. Subarachnoid Hemorrhage - Posterior Inferior Cerebellar Artery Aneurysm. Cerebral angiogram, Left ...

A 65 year-old woman developed the abrupt onset of a global aphasia, left gaze preference, right hemiplegia, and right visual field loss. Middle and Posterior Cerebral Artery Infarction.

A brain aneurysm is an area of weakness in a brain blood vessel that over time can grow larger and thinner. Aneurysms are dangerous because they can grow and eventually rupture allowing blood to leak ...

Approximately 20% of ischemic strokes involve the posterior circulation, primarily supplied by the vertebrobasilar system.

The posterior inferior cerebellar artery (or PICA) is an artery that provides blood flow to the cerebellum, a part of the brain located behind the top of the brain stem, which helps with functions ...