Brain surgery to remove brain tumors can be performed with a minimally invasive technique called a neuroendoscopy. During a neuroendoscopy, your neurosurgeon will access your brain though small (dime-sized) holes in the skull or through the nose or mouth. When used in the right patients, a neuroendoscopy can result in fewer complications, less pain, a faster recover and minimal scarring compared to traditional brain surgery .Neuroendoscopy involves the use of an endoscope a long flexible tube that has a video camera and a light source to perform diagnostic or therapeutic procedures in the brain or  spine The endoscope can be equipped with specialized instruments to perform various procedures..