A tumor that develops in the brain first is called a primary tumor. These can form in the actual brain tissue or near the brain in nerves, the pituitary gland, the pineal gland, or in the membrane casing that covers the brain. Cancer that begins elsewhere in the body and spreads to the brain is known as secondary or metastatic.  This is the most common form of brain cancer and is usually diagnosed in those who have had some form of cancer in the past.  Typical cancers that metastasize to the brain most often are breast, colorectal, kidney, lung and melanoma (the most severe form of skin cancer). Symptoms of brain cancer are listed as follows:

Vision impairment such as blurred sight, double vision, or changes in peripheral vision
Numbness, lack of mobility, or loss of sensation in limbs
Confusion or inability to recall common tasks, people, or things
Changes in personality, behavior and mood
Sudden headaches or changes in your personal headache patterns
Gradual worsening of severity of headaches
Steady increase in the number of headaches
Difficulty with balance, dizziness, or nausea
Hearing impairment
Seizures