The formation of abnormal cells within the brain typically ends up in a brain tumor. Brain tumors are of 2 types: benign tumors and malignant/cancerous tumors. This suggests that every one brain tumors

The formation of deviant cells inside the brain often result in a brain tumor. Brain tumors are of two types: benign tumors and malignant/cancerous tumors. This means that all brain tumors are not cancerous