This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: CSOM and its Complications, Subject name: ENT
Gradenigo's syndrome is characterized by the following EXCEPT 
Select and explain. 
A. Deafness, B. Retro-orbital pain, C. Ear discharge, D. Diplopia
A: Deafness
Answer: A: Deafness 
Explanation: Ans a (deafness). (Ref. Diseases of ENT, PL Dhingra, 3rd ed., 103)Petrositis is spread of infection from middle ear and mastoid to petrous part of temporal bone.GRADENIGO'S SYNDROME is classical presentation of petrositis and it consists of triad of;1. 6th cranial nerve palsy2. Persistent ear discharge3. Retro-orbital/deep seated pain (Vth cranial nerve palsy)