location of strokes

Question 1

Anterior cerebral artery

Answer 1

Contralateral hemiparesis and sensory loss, lower extremity > upper

Question 2

Middle cerebral artery

Answer 2

Contralateral hemiparesis and sensory loss, upper extremity > lower
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 loss
Ataxia, nystagmus

Question 6

Anterior inferior cerebellar artery (lateral pontine syndrome)

Answer 6

Contralateral: limb/torso pain and temperature loss
Ataxia, nystagmus
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 strokes

Answer 9

present with either isolated hemiparesis, hemisensory loss or hemiparesis with limb ataxia
strong association with hypertension
common sites include the basal ganglia, thalamus and internal capsule

Question 10

lesion of optic tract

Answer 10

other side homonymous hemianopia

Question 11

PITS (parietal-inferior, temporal-superior)

Answer 11

homonymous quadrantanopias

Question 12

inferior chiasmal compression (commonly pituitary tumour)

Answer 12

bitemporal hemianopia (upper quadrant > lower quadrant)