Breast cancer: Types, Pathophysiology, Cancer Stages, Symptoms, Investigation, Management

Breast cancer is cancer that forms in the cells of the breast. After skin cancer breast cancer is the most common cancer diagnosed in women. Breast cancer is a disease that occurs when cells in breast tissue change or mutate and keep reproducing, these abnormal cells usually cluster together to form a tumor. A tumor is cancerous or malignant when these abnormal cells invade other parts of the breast.