Stroke lesions location

Question 1

TACS (total anterior circulations stroke)

Answer 1

all 3 of:

• unilateral weakness
• homonymous hemianopia
• higher cerebral dysfunction

Question 2

TACS involves …

Answer 2

middle + anterior cerebral arteries

Question 3

PACS (partial anterior circulation stroke) criteria =

Answer 3

2 of the following:

• unilateral weakness (face, arms or legs)
• homonymous hemianopia
• higher cerebral dysfunction

Question 4

POCS (posterior circulation syndrome)

Answer 4

1 of the following

• cerebellar or brainstem stroke
• loss of consciousness
• isolated homonymous hemianopia

Question 5

LACS (lacunar syndrome) is due to …

Answer 5

subcortical stroke due to small vessel disease

Question 6

LACS criteria includes =

Answer 6

1 of the following

• unilateral weakness
• pure sensory stroke
• ataxic hemiparesis

Question 7

Lacunar infarcts involves perforating arteries around where (3)

Answer 7

• basal ganglia
• thalamus
• internal capsule

Question 8

Features of Weber’s syndrome

Answer 8

• Ipsilateral CN 3 palsy

- Contralateral weakness

Question 9

Ipsilateral features of Wallenberg’s syndrome

Answer 9

• Ataxia
• Nystagmus
• Dysphagia
• Facial numbness
• CN palsy

Question 10

Contralateral features of Wallenberg’s syndrome

Answer 10

Limb sensory loss

Question 11

Contralateral weakness with legs affected more than arms

Answer 11

Anterior cerebral artery

Question 12

Contralateral weakness with arms affected more than legs

Answer 12

Middle cerebral artery

Question 13

Middle cerebral artery stroke results in =

Answer 13

• contralateral weakness (arms > legs)
• dysphasia
• homonymous hemianopia
• dysphasia

Question 14

Anterior cerebral artery stroke results in =

Answer 14

• contralateral hemiparesis (legs > arms)
• behavioural changes
• sensory loss
• behavioural changes

Question 15

Posterior cerebral artery stroke results in =

Answer 15

• weakness
• dizziness
• contralateral homonymous hemianopia w/ macular sparing
• visual agnosis

Question 16

Locked in syndrome due to stroke of…

Answer 16

Basilar artery

Question 17

Amaurosis fugax is a result of stroke of

Answer 17

retinal/ophthalmic artery

Question 18

Presentation of lacunar infarcts

Answer 18

either;

• isolated hemiparesis
• hemisensory loss
• hemiparesis w/ limb ataxia

Question 19

Lacunar infarcts have a strong association with which condition

Answer 19

hypertension

Question 20

Common sites of lacunar infarcts include: (3)

Answer 20

• basal ganglia
• thalamus
• internal capsule

Question 21

Weber’s syndrome is due to a stroke of what?

Answer 21

branches of the posterior cerebral artery that supply the midbrain

Question 22

Wallenberg syndrome is due to a stroke of what?

Answer 22

posterior inferior cerebellar artery

Question 23

Lesions to 9th + 10th nerve nuclei result in

Answer 23

dysphagia + dysarthria