11 doctors weighed in:

Does dcis usually turn into invasive breast cancer?

11 doctors weighed in
Dr. Travis Kidner
Surgery - Oncology
4 doctors agree

In brief: If left alone

Current thought is that if left untreated, dcis will develop into invasive breast cancer.

In brief: If left alone

Current thought is that if left untreated, dcis will develop into invasive breast cancer.
Dr. Travis Kidner
Dr. Travis Kidner
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2 comments
Dr. Herbert Hoover
It is probable that most cases of DCIS will progress to invasive cancer if not treated but it is not certain that all cases will progress.
Dr. Ed Friedlander
We know that many cases stay stable for a decade or more, but who wants to wait? The risk of invasive cancer is very high.
Dr. Barry Rosen
Surgery
4 doctors agree

In brief: No

It is estimated that approximately 10-50% of all cases of dcis if left untreated would progress to invasive cancer.
While some subtypes are more aggresive than others, it is hard to predict which are more likely to become invasive; therefore, our treatment of dcis is geared towards erring on the side of caution and treating all cases as if they could become invasive if left untreated.

In brief: No

It is estimated that approximately 10-50% of all cases of dcis if left untreated would progress to invasive cancer.
While some subtypes are more aggresive than others, it is hard to predict which are more likely to become invasive; therefore, our treatment of dcis is geared towards erring on the side of caution and treating all cases as if they could become invasive if left untreated.
Dr. Barry Rosen
Dr. Barry Rosen
Thank
Dr. Bahman Daneshfar
Radiation Oncology

In brief: In time

Dcis means cancer cells are inside the ducts and have not invaded.
In time these cells will cross the duct wall and invade the breast tissues resulting in invasive cancer. Sometimes dcis can enlarge and remain in one lesion and not invade. Sometime even up to several centimeters. So it does not always lead to invasion. That's why we remove dcis before it does this. But if left alone it would.

In brief: In time

Dcis means cancer cells are inside the ducts and have not invaded.
In time these cells will cross the duct wall and invade the breast tissues resulting in invasive cancer. Sometimes dcis can enlarge and remain in one lesion and not invade. Sometime even up to several centimeters. So it does not always lead to invasion. That's why we remove dcis before it does this. But if left alone it would.
Dr. Bahman Daneshfar
Dr. Bahman Daneshfar
Thank
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