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
Tober Ayer test is positive in 
Select and explain. 
A. Lateral sinus thrombosis, B. Petrositis, C. Cerebral abscess, D. Subarachnoid haemorrhage
A: Lateral sinus thrombosis
Answer: A: Lateral sinus thrombosis 
Explanation: Tobey Ayer test is positive in Lateral sinus thrombophlebitis.Compression of Inferior Jugular Vein in the neck on the normal side causes a rise in CSF pressure but not on the affected side.Ref: Hazarika; 3rd ed; Pg 171