A brain tumor is a mass of abnormal cells located in the brain.Brain tumors can be malignant (cancerous) or benign (notcancerous). Malignant brain tumors can be fatal if not identifiedand treated early. Symptoms may not appear until the tumor islarge, so it is important to know the primary symptoms of a braintumor and what the options are for treatment.Symptoms can vary, depending on the size and location of thetumor and if it has spread. The most common ones are headaches,seizures, weakness and changes in behavior or mental capacities.Headaches may be accompanied by vomiting They may occur duringsleep or get worse with movement. Other symptoms includesleepiness, changes in your senses, memory loss, dizziness,difficulty swallowing, muscle weakness, eye abnormalities anddifficulty reading,