A brain tumor is characterized by abnormal cells growing in the area of the brain. The spread is dangerous since the tumor cells are capable of destroying the normal brain cells. The tumor starts meddling with the normal functions of the brain parts causing inflammation, pressure imbalance etc.
Gamma Knife and Cyber knife, though termed as 'knife' actually don't function as one that cuts through. Both techniques are noninvasive modes of radiation treatment and are advantageous in their own way. The treatment therapies have their application in treatment of both cancerous and non-cancerous tumors anywhere in the body, including the brain, spine, liver, prostate, lung, pancreas and kidney.