Brain Stem Tumor Operation
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Brain Stem Tumor Operation in sitting position by Prof Nazir Ahmad Lahore Pakistan.
Brain tumors are tumors that grow in the brain. A tumor is an abnormal growth caused by cells reproducing themselves in an uncontrolled manner.
When doctors describe tumors in parts of the body other than the brain, they use the words benign (meaning harmless) or malignant (meaning cancerous). These meanings change, however, when referring to tumors in the brain.
Benign brain tumors:
A benign brain tumor consists of benign (harmless) cells and has distinct boundaries. Surgery alone may cure this type of tumor.
Malignant brain tumors:
A malignant brain tumor is life-threatening. It may be malignant because it consists of cancer cells, or it may be called malignant because of its location. In other words, a brain tumor composed of benign cells–but located in a vital area–is still considered malignant.
A malignant brain tumor made up of cancerous cells may spread or seed (metastasize) to other locations in the brain or spinal cord. It can invade and destroy healthy tissue so it cannot function properly. Malignant tumors grow the way a plant does, with “roots” invading various tissues. Or, they can shed cells that travel to distant parts of the brain. Some cancerous tumors, however, remain localized.
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