a) What are the clinical features of Horner’s syndrome?
b) What additional features are associated with lateral medullary syndrome?
a) Horner’s syndrome:
b) Lateral Medullary Syndrome:
- Horner’s Syndrome as well as
- Ipsilateral V, IX and X cranial nerve lesions
- Ipsilateral cerebellar signs
- Contralateral pain and temperature (spinothalamic) loss over the trunk and limbs
Horner's syndrome (the four features mentioned above) is not a problem to remember.
The lateral medullary syndrome, however, is somewhat more taxing on the neurons.
The best way to memorise lateral medullary syndrome features would be to remember the ipsilateral Horners and the contralateral pain and temperature loss. The word "medullary" should dredge up one's recollection of medullary cranial nerve nuclei, of which nerves 5 9 and 10 are involved.