Brain tumors
It is a disease of the brain. It is known as an intracranial tumor in which abnormal growth of cells is produced uncontrollably. More than 150 types of brain tumors occur today.
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What are the types of brain tumors?
There are two main groups of brain tumors classified:
- Primary brain tumors
- Metastatic brain tumor
Primary
brain tumors have tumors that originate from the tissues of the brain. Primary
brain tumors are divided into:
- Glial
- Non-glial
- Benign
- Malignant
On the other
hand, metastatic brain tumors include tumors that can originate elsewhere in
the body such as breasts or lungs. Later, it migrates into the brain through blood
flow.
What are the
causes of brain tumors?
When certain
genes on chromosomes of cells are damaged. These genes normally control the growth
of cell division. It also helps to fix the defects of other genes. An individual
may be born due to which partial genes are produced which may lead to
damage. Environmental factors also lead them to damage. This is the cause
of tumors. The rapid growth of tumors needs more oxygen than normal. Also need more
nutrients that can provide a supply of blood to the whole body. It can produce
substances like angiogenesis factors. It can promote the growth of blood
vessels. Tumors are dependent on these nutrients.
What are the symptoms of brain tumors?
- Headaches
- Seizures
- Convulsions
- Difficulty in thinking, speaking, or articulating
- changes in personality
- Weakness
- May be paralysis attack one side of your body
- Loss of balance
- Dizziness
- Changes in vision
- Changes in hearing
- Tingling
- Facial numbness
- Nausea
- Vomiting
- Swallowing disease
- Confusion
How brain tumors are diagnosed?
Brain tumors
are diagnosed by some techniques such as:
Sophisticated
imaging techniques
Computed
tomography (CT or CAT scan)
Magnetic
resonance imaging (MRI)
Magnetic
resonance spectroscopy (MRS)
Positron
emission tomography (PET scan)
What is the treatment of brain tumors?
Brain tumors
are treated by surgery, radiation, or chemotherapy.
Surgery
It is proven
that complete removal or nearly removal of brain tumors is beneficial for
patients. Neurosurgeons have treated brain tumors. They open the skull by a
craniotomy to make sure that the removal of brain tumors from the brain is possible.
Another
process used before craniotomy is called stereotactic biopsy
Radiation therapy
Radiation
therapy uses high X-rays to kill cancer cells from the brain. There are the following steps of radiation therapy. These are:
- Standard external beam radiotherapy
- Proton beam treatment
- Stereotactic radiosurgery
Chemotherapy
It is worked
by inflicting cell damage that is then repaired by normal tissue than tumor
tissue. It might involve tumor tissue that does not respond to drugs. A special
barrier that exists between the bloodstream and brain tissue is called the blood-brain
barrier. The patient receives chemotherapy with side effects of treatment.
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