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
The investigation of choice for vestibular schwannoma is 
Select and explain. 
A. Contrast enhanced CT scan, B. Gadolinium enhanced MRI, C. SPECT, D. PET scan
B: Gadolinium enhanced MRI
Answer: B: Gadolinium enhanced MRI 
Explanation: MRI with gadolinium contrast. It is superior to CT scan and is the gold standard for diagnosis of acoustic neuroma.Intracanalicular tumour, of even a few millimetres, can be easily diagnosed by this method.Dhingra 6e pg: 113