What kind of numbness casued by acoustic neuroma ? feels nothing when being pinched? is is all over the face?

Hearing loss only: Acoustic neuromas usually cause only hearing loss on the side they are growing and dysequilibrium / imbalance. If they are very big, they can sometimes cause numbness over one side of the face (the same side that they are growing on), sometimes just one portion, sometimes the entire side.

Post operative?: Acoustic neuromas grow on the auditory nerve and slowly cause hearing loss. Surgery to remove the tumor may injure and disrupt other cranial nerves. Often the viith nerve or vth nerve is involved. Facial weakness and facial numbness may occur. However, this usually improves and recovers with time. Review these issues with your doctor.