Review: Introduction to Breast Cancer

Here is what we have learned from Introduction to Breast Cancer:

  • Breast cancer is malignant cell growth in the breast. If left untreated, the cancer can spread to other areas of the body.
  • Breast cancer is the second most common type of cancer in women and the second leading cause of cancer-related death in women.
  • The causes of breast cancer are unknown; however, studies suggest that the growth of breast cancer is often affected by the presence of estrogen.
  • The earliest sign of breast cancer is an abnormality that shows up on a mammogram before it can be felt by the woman or her health care provider.
  • Most breast cancer develops in glandular tissue and is classified as adenocarcinoma; less common types of breast cancer include inflammatory breast cancer, medullary carcinoma, mucinous carcinoma, Paget disease of the nipple, phyllodes tumor, and tubular carcinoma.


Go to the quiz if you want to test yourself on the material you learned in this section. The quiz is a self-assessment tool and no records are kept. The feedback will let you know if you have answered the questions correctly. You can take the quiz as many times as you want.

Click here to take the quiz.