This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': "All of the following are included in Gradenigo's triad EXCEPT: \nSelect and explain. \nA. Abducent nerve palsy, B. Retro-orbital pain, C. Aural discharge, D. Palatal palsy", 'role': 'user'}, {'content': "Answer: D \nExplanation: Gradenigo's syndrome/ Gradenigo-Lannois syndrome/ Petrous apicitis It is a complication of otitis media and mastoiditis involving the apex of the petrous temporal bone. It was first described by Giuseppe Gradenigo in 1904 when he repoed a triad of symptoms consisting of periorbital unilateral pain related to trigeminal nerve involvement, diplopia due to sixth nerve palsy and persistent otorrhea, associated with bacterial otitis media with apex involvement of the petrous pa of the temporal bone (petrositis).", 'role': 'assistant'}]