Cancers in the brain tissue frequently are the result of metastasis from other body organs. They travel through the bloodstream, primarily from cancers of the
lung, kidney, gastrointestinal tract, and breast. They become implanted in both the cerebrum, and cerebellum, and although there is wide distribution of the cancer cells, they are clustered mainly near the surfaces of the brain tissues. Primarily brain tumors are more common among children than among adults; in children, other cancer sites are not likely to have had time to develop to the stage of metastasis of malignant cells to the brain.
Source: The New Complete Medical and Health Encyclopedia
lung, kidney, gastrointestinal tract, and breast. They become implanted in both the cerebrum, and cerebellum, and although there is wide distribution of the cancer cells, they are clustered mainly near the surfaces of the brain tissues. Primarily brain tumors are more common among children than among adults; in children, other cancer sites are not likely to have had time to develop to the stage of metastasis of malignant cells to the brain.
A cancer that seems to originate in the brain tissues is known as glioblastoma multiforme, a malignant growth that strike at any age but is more likely occur during middle age. The glioblastoma may develop in nearly any part of the brain structure, including the brain stem, and spread extensively into a large tumorous mass.
Symptoms of brain cancer may include headache, dizziness, nervousness, depression, mental confusion, vomiting, and paralysis. The symptoms sometimes are interpreted as those of a psychiatric disorder, and treatment of the organic disease may be postponed until too late.
Source: The New Complete Medical and Health Encyclopedia
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