Cord pathology

Question 1

Brown sequard

Answer 1

cord hemisection
ipsilateral corticospinal and dorsal columns affected
contralateral SPT affected (from 1-2 levels below lesion)

Question 2

Cause of subacute combined degeneration of the cord

Answer 2

b12 and vit E deficiency

Question 3

> 40, purely motor, both upper and lower mn signs

Answer 3

motor neurone disease (amyotrophic lateral sclerosis)

Question 4

elderly patient with distal upper limb weakness

Answer 4

central cord syndrome

Question 5

Which sensory fibres decussate in the anterior white commissure of the spine

Answer 5

spinothalamic