A brain tumour takes up space within the skull and
interferes with normal brain activity. A tumour
can cause damage by increasing pressure in the brain,
shifting the brain or pushing against the skull, and invading
and damaging nerves and healthy brain tissue. The location
of a brain tumor influences the type of symptoms that occur.
This is because different functions are controlled by different
parts of the brain.
A brain tumor can block the flow of cerebrospinal fluid (CSF) between
the ventricles, causing a buildup of CSF and swelling,
called brain oedema. Oedema can lead to symptoms including
headaches, seizures, or focal deficits. Focal deficits include
damage to sensory or movement abilities, problems in the ability
to process information, personality changes, and speech disorders.
A tumour of the spinal cord can block the communication
between the brain and nerves throughout the body. This can
lead to problems with movement or physical sensation.
The most common symptoms include:
• Headaches, which can be most severe at nights
• Seizures or convulsions
• Difficulty thinking, speaking, or finding words
• Personality changes
• Weakness or paralysis in one part or one side of the body
• Loss of balance
• Vision changes
• Nausea or vomiting, particularly early-morning
• Confusion and disorientation
Monday, July 28, 2008
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