The growth of abnormal cells in the tissues of the brain. Brain tumors can be benign (non-cancerous) or malignant (cancerous).
Brain tumors are classified depending on the exact site of the tumor, the type of tissue involved, benign or malignant tendencies of the tumor, and other factors. Primary brain tumors can arise from the brain cells, the meninges (membranes around the brain), nerves, or glands.
Causes of Brain Tumor
The cause of primary brain tumors is unknown. This is