Cranial Nerve Lesions

Question 1

Fundoscopy changes in hypertension

Answer 1

Grade I -> silver wiring
Grade II -> Also AV nipping
Grade III -> also haemorrages and exudates
Grade IV -> also papilloedema

Question 2

Causes of a Horner’s

Answer 2

1. Carcinoma of the lung
2. neck -> thyroid cancer or traume
3. carotid artery leasion
4. Brainstem lesion (lateral medullary syndome, syringobulbia or tumore)
5. Retrorbtial lesions
6. Syringomyelia

Question 3

Causes of Ptosis with normal pupils

Answer 3

senile ptosis
myotonic dystrophy
FSH dystrophy
ocular myopathy
thyrotoxic myopathy
Mystenia gravis
Botulism
congentital
fatigure

Question 4

Causes of Ptosis with contricted pupil

Answer 4

Horner’s

tabes dorslis

Question 5

Causes of Ptosis with dilated pupils

Answer 5

third cranial nerve lesion

Question 6

Causes bilateral facial palsy

Answer 6

Guilian Barre Syndrome
Bilateral parotid disease (sarcoid)
Mono-neuritis multiplex