A tumor is an abnormal growth of body tissue. Tumors can be cancerous (malignant) or noncancerous (benign).
Mass; Neoplasm
In general, tumors occur when cells divide excessively in the body. Typically, cell division is strictly controlled. New cells are created to replace older ones or to perform new functions. Cells that are damaged or no longer needed die to make room for healthy replacements.
If the balance of cell division and death...
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Source: ADAM Encyclopedia
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Source: ADAM Encyclopedia
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Source: ADAM Encyclopedia
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Source: ADAM Encyclopedia
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Source: ADAM Encyclopedia
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