PET scan- uses radioactive substance, that is injected in the body, in order to find possible tumor or metastases.Magnetic resonance imaging- most commonly used for diagnosing brain tumors.Neurological exam- checking vision, balance, reflexes, strength, movements.There are a number of tests and procedures that have to be done: Blood cancers, like acute myeloid leukemia can also cause brain damage, and therefore the same symptoms as brain cancer. Secondary tumors occur more often than primary. Brain metastases are usually caused by breast, liver, kidney, colon and skin (melanoma) cancer. Secondary brain tumors develop from another tumor in the body. It can be a variety of things, like environmental factors, exposure to radiation, genetic predisposition. The cause of the mutations to begin in the first place is hard to recognize. Cells start to divide uncontrollably, and continue living, when normal cells would die. Tumors form, because of mutations in cell DNA, which disrupt this normal cycle. Normally, cells are programmed to die and renew in a certain pace. They can originate from the covering membranes of brain (meninges), pituitary, and pineal gland. Primary brain tumors originate from the brain or surrounding tissue. Spinal cancer can cause paralysis, decreased sensitivity to pain, and loss of sensation which mimics some symptoms of brain cancer. For example, tongue cancer can cause difficulty swallowing and trouble moving jaw or the tongue. Some of the symptoms might have a different cause, unrelated to brain tumor. Patient can experience some of them together or possibly no symptoms at all. Īll the mentioned symptoms vary in severity and regularity of occurrence. Brain stem- difficulty swallowing, double vision, facial muscle weakness.Pituitary tumor-symptoms connected to increased level of pituitary gland hormones, like immoderate growth of palms and feet, altered menstrual cycle in women.Parietal or frontal lobe-altered perception of touch or pressure, extremity weakness on one side of the body.Frontal and temporal lobe- impaired speech, hearing, memory.Occipital lobe or temporal lobe- partial or complete loss of vision.Frontal lobe-apathy, lethargy, muscle weakness or paralysis.Cerebellum-Impaired motor skills and loss of balance.
Some specific symptoms depend on the location of the tumor:
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