Keyhole surgery is the concept of safely removing brain & skull base tumors through smaller, more precise openings that minimize collateral damage to the surrounding scalp, brain, blood vessels, and nerves.

Fortunately, given advances over the last two decades in technology and instrumentation, as well as, improved brain and skull base anatomical understanding, a majority of brain and skull base tumors can now be removed via one of these approaches using a small craniotomy (bony skull opening) or an approach through the nostrils.