You will be advised to have a night stay at the hospital after your Neuro-endoscopy procedure. A neuro-endoscopy treatment procedure is done via a small tool known as an endoscope. An endoscope is a tool that has a high-resolution camera that allows the neurosurgeon to locate and access the brain tumor. During an endoscopic endonasal approach, the neurosurgeon will insert an endoscopy through your nasal cavity to reach the brain tumor. To remove the tumor or obtain a sample of the tissue of the affected area for the brain biopsy, the surgeon for neuroendoscopy will attach the surgical instrument to the end of the endoscope. The surgeon will manipulate the instrument to remove the tumor from the brain.