Stroke by Anatomy

Question 1

Anteroir cerebral artery

Answer 1

• Contralateral hemiparesis and sensory loss
• Lower extremity > upper extremity

Question 2

Middle cerebral artery

Answer 2

• Contralateral hemiparesis and sensory loss
• Upper extremity > lower extremity

Contralateral homonymous hemianopia

• Aphasia

Question 3

Posterior cerebral artery

Answer 3

• Contralateral homonymous hemianopia with macular sparing
• Visual agnosia

Question 4

Weber’s syndrome (branches of the posterior cerebral artery that supply the midbrain)

Answer 4

• Ipsilateral CN III palsy
• Contralateral weakness of upper and lower extremity

Question 5

Posterior inferior cerebellar artery (lateral medullary syndrome, Wallenberg syndrome)

Answer 5

• Ipsilateral: facial pain and temperature loss
• Contralateral: limb/torso pain and temperature los
• Ataxia
• Nystagmus

Question 6

Anterior inferior cerebellar artery (lateral pontine syndrome)

Answer 6

• Symptoms are similar to Wallenberg’s but with Ipsilateral: facial paralysis and deafness

Question 7

Retinal/ophthalmic artery

Answer 7

• Amaurosis fugax

Question 8

Basilar artery

Answer 8

• ‘Locked-in’ syndrome

Question 9

Lacunar stroke

Answer 9

• Isolated hemiparesis or hemisensory loss or hemiparesis with limb ataxia