Tumors located at the base of the skull or the pituitary gland are difficult to reach. Traditionally these required large openings in the skull and face. Today many of these can be removed through the nose using endoscopes. Robotic assistance holds the endoscope for the surgeon providing a steady image that does not drift. This allows the surgeon to use both hands to manipulate instruments. The robotic precision is vital when working near the optic nerves and carotid arteries which are often wrapped around these tumors.