A brain biopsy is a diagnostic surgical procedure where a piece of brain tissue or a brain tumor is removed from the brain to be examined.
The most commonly used brain surgery to remove a tumor is a craniotomy. Others include biopsy, craniectomy, endonasal endoscopic surgery, and neuroendoscopy
A craniotomy is the surgical procedure to temporarily remove part of the skull to access the brain.
Gamma Knife surgery, also known as Gamma Knife radiosurgery or Gamma Knife radiation, is a brain cancer treatment option using advanced radiation therapy.
A neuroendoscopy is a minimally invasive brain surgery, where a neurosurgeon accesses the brain though small (dime-sized) holes in the skull or through the nose or mouth.