Is DCIS malignant or benign?

Is DCIS considered malignant?

DCIS is diagnosed when the cells that line the milk ducts turn malignant, but are unable to penetrate through the wall of the duct (noninvasive), so cannot get into the lymph nodes or blood stream. There is currently controversy about whether DCIS should be called breast cancer at all.

Is DCIS considered breast cancer?

Ductal carcinoma in situ (DCIS) means the cells that line the milk ducts of the breast have become cancer, but they have not spread into surrounding breast tissue. DCIS is considered non-invasive or pre-invasive breast cancer.

Is ductal carcinoma benign or malignant?

They develop in the connective tissue (stroma) of the breast, in contrast to carcinomas, which develop in the ducts or lobules. Most are benign, but there are others that are malignant (cancer).

Can DCIS be left untreated?

If DCIS is left untreated, it can go on to become an invasive cancer, so it is often called a pre-cancer.

How quickly does DCIS spread?

It assumes that all breast carcinomas begin as DCIS and take 9 years to go from a single cell to an invasive lesion for the slowest growing lesions, 6 years for intermediate growing DCIS lesions, and 3 years for fast-growing DCIS lesions.

Should I have a mastectomy for DCIS?

Mastectomy involves removal of the whole breast and is usually recommended if the DCIS affects a large area of the breast, if it has not been possible to get a clear area of normal tissue around the DCIS by wide local excision, or if there is more than one area of DCIS.

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Is DCIS 100 curable?

But DCIS is nearly 100 percent curable. Typically, the treatment is a small operation called lumpectomy, often but not always followed by radiation to the area.

Why did I get DCIS?

DCIS forms when genetic mutations occur in the DNA of breast duct cells. The genetic mutations cause the cells to appear abnormal, but the cells don’t yet have the ability to break out of the breast duct. Researchers don’t know exactly what triggers the abnormal cell growth that leads to DCIS.

How serious is ductal carcinoma?

DCIS isn’t life-threatening, but having DCIS can increase the risk of developing an invasive breast cancer later on. When you have had DCIS, you are at higher risk for the cancer coming back or for developing a new breast cancer than a person who has never had breast cancer before.