Damage of the sympathetic trunk, a group of nerves that run from the base of the brain. The symptoms occur on the same side as the lesion of the sympathetic trunk.
Cause(s) :
Congenital or iatrogenic
Lesion of the primary neuron
Stroke at brainstem or tumor at brainstem
Trauma to brachial plexus
Carotid artery ischemia
Symptoms :
Miosis (Small pupil)
Ptosis (droopy eyelid)
Slight elevation of the lower eyelid
Sunken eyes
Bloodshot conjunctiva
Anhidrosis (No sweating either on entire side of the face)
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