Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread (malignant) to other parts of the body. These contrast with benign tumors, which do not spread.
The development of a cancerous tumour in otherwise healthy tissue is the result of a complex series of events beginning with a single cell that has acquired malignant properties as a result of changes in a cell’s DNA – its genetic “blueprint.” The DNA changes may be inherited from our parents or caused, directly or indirectly, by carcinogens (Substances whose exposure can lead to cancer).
Before malignant . . .
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