What term describes the condition where a portion of the brain loses blood supply due to vascular occlusion?

The term that describes the condition where a portion of the brain loses blood supply due to vascular occlusion is stroke. Specifically, a stroke can occur when a blood vessel supplying blood to the brain is obstructed, leading to tissue damage due to lack of oxygen and nutrients. This condition can result in various neurological deficits depending on the area of the brain affected and the duration of the ischemia.

In addition, strokes can be classified into two main types: ischemic strokes, which are caused by blockages in blood flow (such as due to a blood clot), and hemorrhagic strokes, which occur from bleeding in the brain. The focus on vascular occlusion specifically points towards ischemic stroke.

Other terms provided in the question carry different meanings. A hematoma refers to a localized collection of blood outside of blood vessels, typically due to trauma, and does not directly pertain to the cause of blood supply loss from vascular occlusion. A seizure is an abnormal electrical discharge in the brain, resulting in a temporary disturbance in brain function, but it is not related to blood supply issues. Inflammation is a general response of the body to injury or infection, which can occur in various contexts but does not specifically denote an issue with blood supply to the brain