Breast Cancer & Pregnancy

Dr. Panagiotis Polyzos MD PhD MSc

Obstetrician Gynaecologist
Doctor of Medicine, University of Athens Medical School

Panagiotis Polyzos, Gynaecologist Obstetrician, is active at the Institute of Life - IVF Unit of Iaso Maternity Hospital.

Contents

Breast Cancer & Pregnancy

Breast Cancer Statistics

In Greece, as in most Western countries, breast cancer is the most common form of cancer affecting women and accounts for more than ¼ of all cancers.

Cancer is a disease in which cells grow abnormally and create more cells in an uncontrolled way. It begins in the tissues that make up the breast, with cancer cells forming a mass called a tumor. (Note: Not all tumours are cancerous). They can also invade surrounding tissues and spread to lymph nodes and other parts of the body.

The most common types of breast cancer are:

  • Invasive ductal carcinoma (IDC): Cancer that begins in the milk ducts and grows into nearby tissues. About 8 out of 10 breast cancers are of this type.
  • Invasive lobular carcinoma (ILC): Cancer that starts in the lobules and grows into adjacent tissues. About 1 out of 10 breast cancers are of this type.

Through routine screening, breast cancer can often be detected at an early stage, even before it has spread.

Statistics from the U.S. and Europe show that approximately 1 in 10 women will develop breast cancer at some point in their lives. In our country, it is estimated that about 5,000 new cases occur each year, with the disease being the most common form of cancer among Greek women. However, new treatments have already contributed to increased survival rates and continuously improving quality of life for patients. Impressive data shows that the 5-year survival rate for women with breast cancer has reached 85%, compared to about 50% in the past — largely due to early detection.

In the early stages, breast cancer does not cause signs or symptoms. However, as it grows, it begins to create changes in the appearance of the breast or abnormalities that can be detected during palpation.

Breast Cancer: Concerning Signs

  • Changes in size or shape – e.g., one breast may become larger than the other.
  • Skin texture alterations – e.g., dimpling or puckering of the skin.
  • Changes in nipple appearance or direction – e.g., one nipple may turn inward.
  • Nipple discharge – e.g., fluid that may contain blood coming from one or both nipples.
  • Rash or peeling of the nipple or the surrounding area.
  • Lump in the breast or armpit.
  • An abnormal area or unusually dense mass in the breast that does not resolve after menstruation.
  • Pain in a specific area of the breast or armpit that is not related to the menstrual cycle.

Keep in mind that most breast changes are not cancer.

For example, a breast lump could be a cyst, which is filled with fluid and is not cancerous.

Early breast cancer usually does not cause pain. This is why mammography saves lives. Thanks to screening, breast cancer is often detected before a woman experiences any symptoms. It identifies cancer at an early stage, allowing for timely treatment before it spreads. However, a woman should be familiar with the normal appearance and feel of her breasts so she can report any unusual changes to her doctor. If you notice a change in your breast or experience pain, contact your doctor and schedule a consultation.

Many women of reproductive age who have successfully overcome breast cancer reasonably wonder whether they can become pregnant. According to current evidence, after five years have passed since the disease and completion of preventive hormone therapy, pregnancy does not negatively affect their condition.

It is also important to note that for women facing fertility issues, in vitro fertilization (IVF) does not increase the risk of breast cancer. In any case, for women with a history of breast cancer, surrogacy is now widely available as an option to help them achieve their goal of completing their family.

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