This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head & Neck, Subject name: Anatomy
All are the components of Horner's syndrome except: 
Select and explain. 
A. Miosis, B. Ptosis, C. Anhidrosis, D. Exophthalmos
D: Exophthalmos
Answer: D: Exophthalmos 
Explanation: Ans. D. ExophthalmosHorner's syndrome, also known as oculosympathetic paresis, is a combination of symptoms that arises when a group of nerves known as the sympathetic trunk is damaged. The signs and symptoms occur on the same side (ipsilateral) as it is a lesion of the sympathetic trunk. It is characterized by miosis (a constricted pupil), partial ptosis (a weak, droopy eyelid), apparent anhydrosis (decreased sweating), with apparent enophthalmos (inset eyeball).