Neuro

Question 1

Weber’s syndrome
Locations
Artery
SX

Answer 1

Location: Midbrain
Artery: PCA
SX:
1. CN III palsy (eyes get caught in a web)
2. Contralateral weakness of upper and lower extremity

Question 2

Answer 2

Left optic nerve

Question 3

Answer 3

Optic chiasm

Question 4

Answer 4

Incongruous - incomplete/ asymmetrical optic tract
Congruous - optic radiation/ occipital cortex

Question 5

Medial pons
-Art
-sx

Answer 5

BASILAR (branch’s of the base = face )
Abducens nerve palsy
INO
Eye deviation to contralateral side
Contralateral fine touch
Contralateral hemiplegia

Question 6

Lateral Pontine Syndrome
- Art
-Sx 4

Answer 6

AICA (Pons)
1. Contralat. loss P&T (spinothalamic tract)
2. Ipsilat ataxia arm and leg (spinocerebellar tract)
3. ipsilateral Horner’s
(sympathetic pathway)
4. Ipsilateral face loss P&T (sensory nucleus of trigeminal nerve)
“facial droop means AICA is pooped”
similar to Wallenberg’s, but:
Ipsilateral: facial paralysis and deafness

Question 7

Lateral Pon
- Art
-Sx

Answer 7

AICA (Pons)
Ipsilateral ataxia
Vertigo, nystagmus, tinnitus deafness
Horner’s
Ipsilateral facial sensation & mastication
Contralateral loss of p& T (body)
similar to Wallenberg’s, but:
Ipsilateral: facial paralysis and deafness

Question 8

‘Locked-in’ syndrome
Location
Sx

Answer 8

• Basilar artery
  Pons, cerebellum
  Quadriplegia
  Anarthria
  Restricted horizontal eye movement

Question 9

Lateral Medulla/ Wallenberg syndrome

Answer 9

Medulla - PICA (Chew)
Vertebral artery

1. contralat. loss of P&T arm and leg (spinothalamic tract)
2. ipsilateral ataxia arm and leg (spinocerebellar tract)
3. horner’s syndrome of the ipsilateral eye (sympathetic pathway)
4. ipsilateral face loss of P&T (sensory nucleus of trigeminal nerve)
   Dysphasia & vertigo
   Bulbar palsy ; uvula deviation
   CN : 9, 10, and 11

Question 10

Medial Medullary Syndrome

Answer 10

Vertebral artery +Ant spinal artery

1. contralat weakness of the arm & leg (corticospinal tract)
2. contralateral loss of vibration & proprioception arm & leg (medial lemniscus)
3. ipsilateral INO (medial longitudinal fasciculus)
4. ipsilateral loss of function of midline cranial nerve 12
   “lick your wounds” Mcdonals arches

Question 11

CN Medial Pontine Syndrome

Answer 11

cranial nerve 6 is a midline structure

Question 12

CN lateral pontine syndrome

Answer 12

cranial nerves 5, 7, and 8 *
loss of function of cranial nerve 7 (facial nerve) = facial paralysis
“facial droop means AICA is pooped”

Question 13

CN of Lateral Medullary Syndrome

Answer 13

CN 9, 10, and 11
Mainly 9glossopharyngeal, hoarseness
CN 10 vagus nerve= dysphagia
“Never pick a (PICA) horse (hoarseness) that cannot eat (dysphagia)

Question 14

CN Medial Medullary Syndrome

Answer 14

CN12 is the only midline CN
deviation of the hypoglossal nerve to the ipsilateral side (side of the infarction)
“lick your wounds”