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What is Breast Cancer?

Under normal circumstances, a cell can divide to form two new identical cells. Several mechanisms control this division making it possible to check the viability and integrity of the daughter cells. In case of an anomaly, a mechanism called apoptosis is triggered in the body which causes the defective cells to die. Hence, the body adapts by replacing or repairing cell loss caused either accidentally (through wounds or aggression) or naturally (through the aging process). This ability for division, repair and controlled death is characteristic of normal tissue.                             

A normal cell becomes cancerous (or “malignant”) when it spreads erratically in a tissue, notably in the breast tissue, and creates a mass. This mass indicates the occurrence of an abnormal transformation in the cells (mutation) during which these cells develop the ability to escape from the body’s control, and thus divide indefinitely and become lethal (uncontrolled cellular cycle, resistance to apoptosis, anomalies in DNA repair).