This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': "Which of the following is not a component of Gradenigo's syndrome? \nSelect and explain. \nA. Deep seated orbital pain, B. Greisinger sign positive, C. Abducent nerve palsy, D. Discharge from ear", 'role': 'user'}, {'content': "Answer: B \nExplanation: Discharge from ear is not present in gradeinigo syndrome. Gradenigo Syndrome (GS) is classically described as a clinicaltriad of otitis media, facial pain, and abducens palsy that in the past most commonly developed from infection in the petrous temporal bone (i.e., petrous apicitis). Ref ganong's review of medical physiology 25e p438", 'role': 'assistant'}]