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Metastatic cancer is the type of cancer which spreads to other parts of the body from its original location. If a person has lung cancer and it spreads to the brain then we will not call it brain cancer but lung cancer because its original location is lung and not the brain. Brain metastases usually occur as malignant cancers which can be fatal.
Malignant cancers are harmful and are characterized by abnormal growth of cells. Benign tumors are harmless because they do not spread to other parts of the body. They physically remain where they develop and are not fatal. However, if their growth is causing a problem or is compressing important veins, they can be removed through minor surgery. In most of the cases of benign tumors, any form of medical treatment is not required. However, if a person does not like them they can have them removed surgically.
Why brain metastases occur?
It is commonly known that cancer is a disease which can be effectively treated if detected and diagnosed earlier. Earlier diagnosis and detection mean immediate line of treatment to cope with the disease. However, when cancer is not diagnosed earlier, which often happens because it has no real signs and symptoms, it can spread to other parts of the body including the brain. Other organs like the pancreas, kidneys, and colon can also get affected. When the cancer is in its third stage, it is likely to spread to other parts of the body and disrupting the normal growth of cells. Brain metastases can prove to be fatal because once it spreads to the brain treatment become more difficult. A tumor may start growing somewhere in the brain causing malfunction, it spreads to other parts of the body including the brain through lymph nodes.
Why Brain Metastases can be Fatal?
The brain is a very complicated organ and it is responsible for controlling the entire body including all the vital organs. Once the brain is affected, all the normal functioning of the body gets affected. It leads to paralysis of the body, blurred vision and even blindness, it changes cognitive ability and eventually breathing, heart and pulse rate leading to death. Once cancer is spread, it becomes almost impossible to treat. Even chemotherapy at that stage cannot work.
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