Brain tumors produce a variety of symptoms ranging from headache to stroke.
They are great mimics of other neurologic disorders. Symptoms occur if the tumor directly damages the nerves in the brain or central nervous system or if its growth imposes pressure on the brain. Some gliomas develop gradually and symptoms may be subtle for a long time, making an early diagnosis difficult. Headache is probably the most common symptom of a brain tumor. Headaches caused by brain tumors may rouse a person from sleep and may worsen with coughing or exercise or with a change in body position.