Lobar hemorrhages

(bq) part 2 book “stroke syndromes” has contents: anterior cerebral artery, posterior cerebral artery, intraventricular hemorrhage, cerebral venous thrombosis, lobar hemorrhages, cervical artery dissections, spinal stroke syndromes, borderzone infarcts,… and other contents.

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Stroke This occurs when interruption of blood supply from the posterior cerebral artery to the visual cortex is prolonged. The only finding on examination is a homonymous visual field defect that stops abruptly at the vertical meridian. Occipital lobe stroke is usually due to thrombotic occlusion of the vertebrobasilar system, embolus, or dissection. Lobar hemorrhage, tumor, abscess, and arteriovenous malformation are other common causes of hemianopic cortical visual loss. Factitious (Functional, Nonorganic) Visual Loss This is claimed by hysterics or malingerers.

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