DCIS stands for ductal carcinoma in situ. DCIS is when the breast duct has abnormal cells in its lining. These abnormal cells have usually not spread outside the duct to other tissues of the breast. Research shows some types of DCIS may never harm your health during your lifetime.
The COMET interactive decision support tool helps you answer some questions:
This decision support tool should not replace consultation with a doctor.
Uncertainty is when outcomes are not known. For example, no one knows if some types of DCIS result in future cancer.
Risk estimates show how likely it is that a future condition will happen. They tell you if a future DCIS or cancer might return to the breast within a certain time after treatment.
All risk estimates given in this tool are absolute risks.
A decision support tool helps patients and caregivers make decisions. It can help them understand each treatment choice and what may happen with each choice.
The decision support tool estimates your chances of having certain health conditions at 10 years. If you know your DCIS is low-risk (low or intermediate grade), check the low-risk box. If you know your DCIS is high-risk (high grade or estrogen-receptor negative), check the high-risk box. If you don’t know, check the don’t know box and you’ll get an average of the estimated numbers.
The risk estimates in the decision support tool only apply to women who have surgery.
Some women with low-risk DCIS may not have a future invasive breast cancer. These women could use active surveillance. Surgery is recommended only if tests find invasive cancer.
Active surveillance does not mean patients are doing nothing. The patient and her healthcare provider watch the DCIS. A few studies show that surgery for low-risk DCIS may not affect a woman’s survival. Read about a study that tests active surveillance.
Note: Use the decision support tool in consultation with a doctor.
Use the decision support tool menu to find the absolute risks for each treatment type.
Risk estimates are one piece of information that can help you make a decision. There are other things to consider:
There is no right or wrong answer when it comes to your treatment decision. It is important to choose a treatment that is right for you and your health.Next »