 Hi, I'm Dr. Praveen Ghanagi working as a consultant neurosurgeon and head of the department in Department of Neurosurgery, Manipal Hospital, Bangalore. One should understand that all the conditions can be treated with the endoscope. So there are certain conditions where you need to avoid using endoscopes. Suppose there's a pituitary tumor which is extending laterally into cavernous sinus or it is extending quite laterally and superiorly. You need to avoid endoscopes and better to do a open skull surgery. Or certain tumors where there are critical neuro structures and blood vessels which are adherent to it and using endoscopes is not advisable. So we need to consult your neurosurgeon before you advising him to operate on an endoscopic neurosurgery. Better the neurosurgeon take a call on whether it can be done through endoscope or it can be done through open approach.