This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Middle Ear (Otitis Media), Subject name: ENT
Lateral sinus thrombosis is associated with all except: 
Select and explain. 
A. Griesinger's sign, B. Gradenigo triad, C. Crowe-Beck sign, D. Tobey-Ayer test
B: Gradenigo triad
Answer: B: Gradenigo triad 
Explanation: (b) Gradenigo triad(Ref. Cummings, 6th ed., 2165)Gradenigo triad is seen in association with abscess of petrous apex or petrositis. Rest all are seen in lateral sinus thrombosis.