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Canadian Cancer Society
1910 McIntyre Street
Regina, Saskatchewan S4P 2R3
Tel: (306)790-5812
Fax: (306)669-2133
www.cancer.ca/
Contact: Alex M. Wilson
awilson@sasktel.net
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Cancer is a disease in which abnormal cells in some organ or tissue go out of control growing and increasing in number. Normal cells reproduce themselves throughout a person's life, but in an orderly and controlled manner. In normal cells, growth occurs, worn out tissues are replaced and wounds heal.
When cells grow out of control and form a mass, the mass is called a tumour. Some tumours grow and enlarge only at the site where they began and these are called benign tumours.
Other tumours not only enlarge locally, but they also have the potential to invade and destroy the normal tissue around them and to spread to distant parts of the body. Such tumours are called malignant or cancer.
Distant spread of a cancer occurs when malignant cells detach themselves from the original (primary) tumour, are carried to other parts of the body through blood or lymphatic vessels and establish themselves in the new site as cancer. A tumour that has spread in this manner is said to have metastasized (spread) and the secondary tumour (or tumours) is called a metastasis.
Category: Non-Profit
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