Breast cancer is caused by the abnormal growth of cells in the breast. Cells in our body will normally divide and replicate for growth and renewal. This process is usually well-regulated and controlled by our body.
Sometimes, an error occurs during the replication process and these new cells become abnormal. An abnormal cell may acquire errors (mutations), allowing them to replicate beyond the body’s control. With more mutations, it will eventually gain the ability to spread (metastasize). This ability to spread is what makes a cell cancerous.
The majority of breast cancers start in the milk ducts. Once it becomes cancer, it can spread to the lymph nodes in the underarms, bones, lungs, and liver. Breast cancer can occur in both men and women but happens far more commonly in women.
According to the Singapore Cancer Society, breast cancer is the most common cause of cancer among Singaporean women. In fact, about 6 women are diagnosed with breast cancer every day.
Breast cancer can be divided into two broad categories: Invasive cancer and precancerous (In situ) cancer.
Breast cancer is invasive when it has gained the ability to invade into adjacent organs and spread to distant sites (metastasis). However, normal breast cells do not change to invasive cancer overnight. It begins by acquiring mutations that make it abnormal, and over time with more mutations and abnormalities, it eventually becomes invasive cancer. Before it acquires this ability to invade, these abnormal breast cells are precancerous ie. Insitu disease.
Doctors and pathologists are able to identify and differentiate different types of breast cancers based on how they look under the microscope. This will enable the breast cancer specialist to predict the behaviour for each type of these cancers, and more importantly tailor-suit the appropriate treatment for each individual patient.
The most common types of breast cancers are Invasive Ductal carcinoma and Invasive Lobular carcinoma while the most common type of precancerous disease is Ductal Carcinoma In Situ (DCIS).
Apart from the microscopic appearance of these abnormal cells, a breast cancer specialist can also predict behaviour and outcomes based on different ways which the cancer presents itself. Most cases present itself with a breast lump or are detected through breast screening. However, less common types of presentations include Paget’s Disease of the breast and inflammatory breast cancer.
Depending on the type of cancer you’re diagnosed with, your treatment options will vary.
While breast cancer can have various symptoms for different people, some patients will not notice signs at all.
The most commonly reported symptom is a lump forming in your breast or armpit region. Other early warning indicators include:
Unfortunately, breast cancer is a common disease among women. In Singapore, breast cancer is the most common cancer among women, where about 1 in 10-12 women will develop breast cancer in their lifetime.
Understanding your own risk is important because it helps you take a more proactive role in getting this disease treated early or preventing this disease. We can classify risk factors into modifiable and non-modifiable risk factors. Non-modifiable risk factors are things we cannot change such as family history and gender. Modifiable risk factors are things we can change to reduce the risk of developing breast cancer, such as obesity.
Nevertheless, a good number of women who become diagnosed with breast cancer have no known risk factors, besides being female.
Factors that are linked to an increased risk of breast cancer include:
Breast cancer screening involves checking your breasts for cancer before any signs or symptoms begin to show. While screening alone cannot prevent breast cancer, the goal is to detect breast cancer in its early stages, where chances of successful and simpler treatment are higher.
It is important for you to talk to your doctor and find out which breast cancer screening tests are right for you.
There are a number of screening tests, which include:
Given that your risk of developing breast cancer increases with age, the Ministry of Health (MOH) recommends that normal-risk women aged 40-49 should go for yearly mammograms. Those aged 50 and above will require a mammogram every 2 years.
If you have any risk factors or abnormal symptoms, you should speak to your doctor and share any concerns that you may have. Depending on your condition and individual breast cancer risk, you may be advised to undergo frequent mammogram screenings. In most cases, yearly screening is sufficient.
Breast cancer is a common disease among women, but is treatable when detected early. We know that with breast screening, we can find early disease which is associated with simpler treatments and better survival. Regular breast screening is well researched to be associated with a lower chance of death from breast cancer. As no two women are the same, it is also important to discuss with your Breast Cancer Specialist about your individual risk and devise a personalised screening regime that matches your own risk.
According to a report released by the Singapore Cancer Registry in 2017, stage I breast cancer patients have a 5-year survival rate of 90%. Stage II breast cancer patients, on the other hand, have a 5-year survival rate of 80%.
Despite the high incidence of female breast cancer, going for regular screenings is the first step that you can take to protect yourself from the disease. It is also important to conduct breast self-examination on your own to observe any abnormal physical changes to your breast area. A healthy diet and lifestyle will also contribute to lowering your chances of breast cancer.
Make an appointment today for a breast cancer screening at SOG, and get in touch with our breast surgeon for a consultation session.
Established in 2011, Singapore O&G Ltd. (SOG) is a leading healthcare service provider dedicated towards delivering premier medical services to women’s and children’s health and wellness at affordable prices.
With a long and established track record in Singapore providing obstetrics and gynaecology (O&G) services such as pre-pregnancy counselling, delivery, pregnancy and post-delivery care, the Group has since further expanded its spectrum of healthcare services to include paediatrics, endocrinology, gynaecological cancer, cancer-related general surgery for breast, thyroid and colon (colorectal), as well as skin and aesthetics treatments.
The Group’s clinics, under its four operating segments of O&G, Paediatrics, Cancer-related and Dermatology, are strategically located throughout Singapore to provide easy access to its patients.
SOG has been listed in the Catalist board of the Singapore Exchange Securities Trading Limited since 4 June 2015.
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