Classification
- Intracerebral hemorrhage
- Subarachnoid hemorrhage
- Ischemia/infarct
Syndromes
Lacunar Syndromes
- Pure motor: contralateral posterior limb of internal capsule or corona radiata
- Pure sensory: contralateral ventroposterolateral thalamic nucleus
- Mixed sensorimotor: contralateral thalamus and posterior limb of internal capsule
- Dysarthria-clumsy hand: contralateral base of pons
- Ataxic hemiparesis: contralateral posterior limb of internal capsule or base of pons
- Hemiballismus/hemichorea: contralateral subthalamic nucleus
Posterior Circulation Strokes
Carotid Artery Dissection
- Usually associated with neck pain
Vertebral Artery Dissection
Lateral Medullary Syndrome
- Contralateral pain/temperature sensory deficit with ipsilateral Horner's syndrome, cranial nerve deficits
- Often presents with dizziness, nausea/vomiting, nystagmus, dysphagia/dysarthria/dysphonia, Horner syndrome
- Pain or an unpleasant feeling in the face is sometimes a prominent early feature
- Most commonly caused by vertebral artery or PICA occlusion
Further Reading
