A 45 year old man presents with hearing loss and tinnitus in the right ear. Examination: weber test lateralizes to the left. Audiometry: AC > BC in both ears. What is the next best investigation?

The key is B. MRI brain. [AC>BC indicate Rinne positive; i.e. The deafness is not conductive. Again hearing loss is on right side. Weber lateralized to left. We know weber lateralized to same side if conductive deafness and to opposite if there is sensoryneural deafness. So it is now obvious that the deafness of right ear is sensoryneural deafness for which MRI brain is the next best investigation].