BRAIN CANCER
A brain tumour is a massive growth of abnormal cells in the brain. There are many different types of brain tumours some of them are non-cancerous (benign) and a few are cancerous (malignant). Brain tumours share some feattumourures and challenges for diagnosis and therapy with tumours elsewhere in the body. Most of the brain is separated from Blood-Brain Barrier (BBB) that exerts a much more restrictive control over substances that are allowed to pass through to other organs. There are around 120-150 different types of brain and central nervous system tumours that have been documented so far. According to 2012 data globally there were nearly 2,60,000 reported cases of brain and nervous system cancer around the world. It is the 22nd most common cancer worldwide with 1.8% total number of new cases worldwide. And according to the mortality rate, it ranks 12th. TYPES OF TUMORS: A Tumor is simply a mass of cells that are classified into two types are Benign tumour a