What might a tumor pressing on an artery cause?

A tumor pressing on an artery can lead to an ischemic stroke because it may obstruct blood flow to a specific area of the brain. When blood flow is restricted due to the pressure from the tumor, the affected brain tissue is deprived of the oxygen and nutrients it needs to function properly. This lack of blood flow can result in cell death, leading to the symptoms of an ischemic stroke.

In contrast, a hemorrhagic stroke occurs when a blood vessel in the brain ruptures, causing bleeding. A transient ischemic attack (TIA) is defined as a temporary period of symptoms similar to those of a stroke and is typically not caused by a tumor pressing on an artery. Seizures can result from various neurological conditions but are not directly a result of a tumor's pressure on an artery. Understanding these mechanisms is crucial for identifying and responding to stroke symptoms effectively in a first aid scenario.