A recent study suggests that women with benign breast lumps detected during mammograms may have an increased risk of developing breast cancer in the future. Here are some key points from the International Journal of Environmental Research and Public Health (Feb 24, 2022).
- Research Details: The study examined data from over 778,000 women aged 50 to 69 who had undergone mammograms at a breast cancer screening center in Spain between 1996 and 2015. The follow-up period for these women averaged 7.6 years.
- Findings: During the study, mammograms identified benign breast disease (noncancerous tissue growth) in 2.3 percent of the participants and breast cancer in 1.5 percent. The study found that women with benign breast disease had a higher risk of developing breast cancer compared to those without such growths.
- Increased Risk: Approximately 25 out of every 1,000 women with benign breast disease went on to develop breast cancer, whereas only 15 out of every 1,000 women without benign breast disease developed breast cancer.
- Long-Term Risk: The increased risk associated with benign breast disease persisted over time. Women who were followed for up to two decades were roughly twice as likely to receive a breast cancer diagnosis if they had a history of benign breast disease.
- Recommendations: The study’s lead author, Dr. Marta Román, suggested that women diagnosed with benign breast disease, especially those with other high-risk factors like a family history of breast cancer, might benefit from more frequent breast cancer screening.
- Limitations: The study had some limitations, including a lack of data on certain factors that can influence breast cancer risk, such as obesity, menopause timing, and hormone therapy usage. It also did not examine specific subtypes of benign breast disease in detail.
- Benign Breast Disease Types: It’s important to note that not all types of benign breast disease pose the same risk of developing into breast cancer. Some benign conditions, like hyperplasia and intraductal papilloma, have a higher potential to lead to cancer in the future, while others, like fluid-filled breast cysts and lumps from scar tissue, are less likely to increase cancer risk.
- Early Detection and Lifestyle: To improve the chances of early detection and treatment, women are encouraged to perform regular self-exams, undergo routine mammograms, and maintain a healthy lifestyle with proper nutrition and exercise.
In summary, this study highlights the association between benign breast disease detected during mammograms and an increased risk of breast cancer later in life. It underscores the importance of regular breast cancer screening, particularly for women with benign breast disease and additional risk factors. However, further research may be needed to understand the full scope of this relationship and its implications for breast cancer prevention and early detection.