Filed under: Cancer & Chemo
Atypical hyperplasia is a precancerous condition that affects cells in the breast. Atypical hyperplasia describes an accumulation of abnormal cells in a breast duct (atypical ductal hyperplasia) or lobule (atypical lobular hyperplasia).
Atypical hyperplasia isn't cancer, but it can be a forerunner to the development of breast cancer. Over the course of your lifetime, if the atypical hyperplasia cells keep dividing and become more abnormal, your condition may be reclassified as noninvasive breast cancer (carcinoma in situ) or breast cancer.
If you've been diagnosed with atypical hyperplasia, you have an increased risk of developing breast cancer in the future. For this reason, doctors sometimes recommend more frequent breast cancer screening and careful consideration of medications and other strategies to reduce breast cancer risk.
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