Breast cancer is a tumour in the breast that contains cancerous cells. A breast tumour is a lump created by an abnormal and uncontrolled growth of cells. It can either be malignant (cancerous) or benign (not cancerous). Breast cancer usually starts in the cells lining the ends of the lobes and in the ducts themselves. It can spread from there into the breast tissue and lymph nodes.
Attribution: BUPA
See also:
- Types of breast cancer
- Symptoms of breast cancer
- Risk factors of breast cancer
- Screening for breast cancer
- Prevention of breast cancer