Stroke lesions

Question 1

Contralateral paralysis of upper limb
&/or 
contralateral loss of sensation of upper limb & face 
&/or
either aphasia or hemineglect

Answer 1

MCA

damage = motor &/ sensory cortex &/or either temporal - Wernicke’s - or frontal - Broca’s - lobes

Question 2

Contralateral paralysis of lower limb
&/or
loss of sensation of lower limb

Answer 2

ACA

damage = motor &/or sensory cortex

Question 3

Contralateral hemiparesis/hemiplegia

Answer 3

Lateral striate artery

damage = striatum, internal capsule

Question 4

1. Contralateral hemiparesis - lower limbs
2. ↓contralateral proprioception
3. Ipsilateral hypoglossal dysfunction (tongue deviates ipsilaterally)

Answer 4

Medial Medullary Syndrome

• • Ant. Spinal Artery (infarct of paramedian branches of ASA & Vertebral arteries)
    1. Lateral corticospinal tract
    2. Medial lemniscus
    3. Caudal medulla – hypoglossal nerve

Question 5

Vomiting, vertigo, nystagmus.

• ipsilateral Horner’s Syndrome
• Ataxia, dysmetria
• ↓pain & temp sensation to limbs/face
• dysphagia, hoarseness
• ↓ gag reflex

Answer 5

Lateral Medullary Syndrome
- PICA

(Nucleus ambiguous Sx specific)

Question 6

Vomiting, vertigo, nystagmus.

• ipsilateral Horner’s Syndrome
• Ataxia, dysmetria
• ↓pain & temp sensation to face
• Paralysis of face
• ↓ lacrimation, salivation, taste from anterior 2/3 of tongue
• ↓ ipsilateral hearing

Answer 6

Lateral Pontine Syndrome
- AICA

(Facial nucleus Sx specific)

Question 7

Contralateral hemianopia w/ macular sparing

Answer 7

PCA

Question 8

CN III palsy

Answer 8

Posterior Communicating

common sight of saccular berry aneurysm

Question 9

Visual field defects

Answer 9

Anterior Communicating

common sight of saccular berry aneurysm