All are true regarding brown sequard syndrome except?
A. Ipsilateral pyramidal tract involvement
B. Contralateral dorsal column involvement
C. Contralateral spinothalmic involvement
D. Ipsilateral extensor plantar reflex
(Repeat question – AIPGMEE 07 MK q175)
Correct answer : B. Contralateral dorsal column involvement
Ref: Harrison 16th, p2440, 144
Brown-Séquard syndrome, also known as Brown-Séquard’s hemiplegia and Brown-Séquard’s paralysis, is a loss of sensation and motor function (paralysis and ataxia) that is caused by the lateral hemisection of the spinal cord.
Features of Brown-Séquard syndrome:
- Ipsilateral pyramidal tract involvement – loss of motor function – as the neurons cross to opposite in the medulla
- Ipsilateral dorsal column involvement – loss of fine touch, joint position and vibration sense – as the neurons cross to opposite in the medulla
- Contralateral spinothalmic involvement – loss of crude touch, pain and temperature – as the neurons cross to opposite in the spinal cord