Major ascending and descending tracts

Question 1

Which spinal level is syrinogmyelia most likley to occur?

Answer 1

Cervical level
Bilateral loss of anaesthesia

It can also occur at other spinal levels
Also known as central cord syndrome

As the disease progresses the cyst expands into the ventral horn, which can lead to transection of the ventral horn

Question 2

What is tabetic syndrome?

Answer 2

Damage to the dorsal columns
Vitamin B12 deficiency - causing demyelination of proprioceptive afferent fibres
Dorsalis pedis
Thrombosis of posterior spinal arteries

Clinical presentation: postural instability, same symptoms as vitamin b12 deficiency and walk with stamping gait (use the approach to understand the position of the feet by using pain sensation instead of proprioception)