Unlike many colorful expressions in English whose origins are lost to us, the comparison of majorly consequential tasks to brain surgery makes perfect sense. One false move or miscalculation can result in instant death. The chances of irreversible, life-altering damage are high, should a scalpel slip or a surgeon mistake healthy brain tissue for diseased. This can happen more readily than we might like to think. “It can be very difficult to tell the difference between the tumor and normal brain tissue,” admits Dr. Basil Enicker, a specialist neurosurgeon at Inkosi Albert Luthuli Central Hospital in South Africa.
An operation Enicker led makes the procedure seem like just as much an art as a science. During an “awake craniotomy,” the surgeon and his team removed a tumor from the brain of Musa Manzini, a South African jazz bassist.
To help them monitor the operation as they went, they had him …