A brain tumor is an abnormal growth of cells in the brain. There are several types of brain tumors: it can be a benign tumor (non-cancerous) or malignant tumor (cancerous). The brain tumor can also be classified as primary brain cancer (origin in the brain) or a secondary brain tumor (has spread from another part of the body to the brain). The symptoms and rate at which the brain tumor grows dep..

Healthy cells in the kidney can turn cancerous due to mutation, excessive smoking, alcohol, and tobacco consumption and thus result in causing kidney tumors or cancer. Kidney cancer can develop in the lining of renal tubules. The main function of these tubules is to clean the blood and produce urine. Flank pain, blood in urine, blood in urine, and concrete mass are the symptoms of kidney cance..