Brain tumor
A brain tumor is an abnormal growth of cells in the brain. It can benign (non-cancerous) or malignant (cancerous). Brain tumors can grow from different types of cells in the brain and can occur at any age. Symptoms of a brain tumor vary depending on its location, size, and growth rate. Common symptoms include headaches, seizures, difficulty speaking or understanding language, changes in vision or hearing, loss of balance, and memory loss.