What does occlusion and stenosis of basilar artery with cerebral infarction mean?

Occlusion of the basilar artery refers to a blockage that prevents blood flow through this critical vessel, which supplies blood to the brainstem and posterior regions of the brain. Stenosis indicates a narrowing of the artery, which can also restrict blood flow. When these conditions occur alongside cerebral infarction, it means that the restricted blood supply has led to a localized area of brain tissue death due to lack of oxygen, potentially resulting in neurological deficits. This situation is considered a medical emergency and requires prompt intervention.