Which symptom is associated with PCA stroke?

Homonymous hemianopia is a specific visual field loss that occurs when there is damage to the visual pathways, particularly in the posterior cerebral artery (PCA) territory. In PCA strokes, the areas of the brain that are usually affected include the occipital lobe, which is responsible for visual processing. This damage leads to the loss of vision in the same half of the visual field in both eyes, hence "homonymous."

Understanding the association between PCA strokes and homonymous hemianopia highlights the distinct neurological impairments that can arise from specific vascular insults in the brain. While other symptoms listed such as contralateral sensory loss, ataxia, and speech difficulties may correlate with strokes in other cerebral artery territories—such as the middle cerebral artery (MCA)—they are not predominantly linked with PCA strokes.

This knowledge is crucial for clinicians in understanding stroke presentations and tailoring interventions accordingly.