Extra questions

Question 1

ASPECTS required for considering thrombectomy

Answer 1

> =3

Question 2

Episodic tension-type headache criteria

Answer 2

2 out of 4:
- Bilateral
- Mild to moderate
- Non-pulsatile
- No aggravation during routine physical activity

Question 3

Typical locations of MS

Answer 3

• Juxtacortical
• Periventricular
• Infratentorial
• Spinal cord

Question 4

Cingulate island sign

Answer 4

Hypometabolism of precuneus and cuneus with preservation of the posterior cingulate cortex
–> Lewy body dementia

Question 5

Which cortex involvement is specific to Alzheimer’s disease

Answer 5

Posterior cingulate cortex

Question 6

Susac syndrome

Answer 6

Causes:
- Hearing loss
- Vision changes due to branch retinal artery occlusion
- Encephalopathy
MRI: FLAIR changes in corpus callosum

Question 7

Superior Semicircular Canal Dehiscence syndrome symptoms

Answer 7

• Pressure induced vertigo
• Sound induced vertigo
• Conductive hearing loss

Question 8

Vestibular schwannoma: type of hearing loss

Answer 8

Sensorineural hearing loss

Question 9

Muscles innervated by lower trunk (C8-T1) that are not innervated by the ulnar nerve

Answer 9

• Abductor pollicis brevis
• Flexor pollicis longus
• Extensor indicis proprius
  (test these to rule out C8-T1 radiculopathy, brachial plexopathy or polyneuropathy)

Question 10

PNS: which cells myelinate axons and how many axons

Answer 10

Schwann cells
1 schwann cell myelinates one axon

Question 11

CNS: which cells myelinate axons and how many axons

Answer 11

Oligodendrocyte
1 oligodendrocyte myelinates >40 axons

Question 12

Cogan syndrome

Answer 12

• Episodic vertigo
• Interstitial keratitis
• Bilateral fluctuating sensorineural hearing loss

Question 13

Levels of melatonin in hyperactive and hypoactive delirium

Answer 13

Hyperactive: decreased
Hypoactive: increased

Question 14

PET Scan in schizophrenia

Answer 14

Decreased metabolism in the frontal lobes