Chapter 40 · Age (4)

The tail-shaped tumor seen in the imaging also had to be removed.

Choi Moo-gyeol looked at the entrance of the internal auditory canal.

The part visible from the outside looked clean.

However, the inside of the internal auditory canal was hidden by bone and not clearly visible.

The tumor that had caused Myeong In-su’s hearing loss before surgery was hidden there.

“Prepare the drill.”

Park Seok-hun asked.

“Are you going to open the posterior wall of the internal auditory canal?”

“Up to the lateral boundary of the tumor.”

“First, let’s check the auditory nerve signal again.”

“The left brainstem auditory evoked potential is maintained. There is no significant change from the pre-surgical baseline.”

The neurophysiological monitoring team answered.

Hearing was still alive.

That fact made the surgery even more careful. Hearing must not be damaged after surgery.

“Diamond bur.”

The tip of the high-speed drill was replaced with a fine…