This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Gradeneigo syndrome is characterized by all the following except - 
Select and explain. 
A. Diplopia, B. Retroorbital pain, C. Persistent ear discharge, D. Preauricular sinus
D: Preauricular sinus
Answer: D: Preauricular sinus 
Explanation: Ans. is 'd' i.e., Preauricular sinus * Gradenigo syndrome has been explained in previous sessions.