Ductal Carcinoma in Situ

Ductal carcinoma in situ (DCIS) -- sometimes also called intraductal carcinoma -- is an early form of breast cancer. Because the cancer cells are still within a duct and have not invaded deeper into the surrounding fatty breast tissue, it is considered to be Stage 0. It is is not invasive but represents abnormal cells within the ducts of the breasts.

According to the American Cancer Society, about one in five new breast cancer cases will be DCIS, which equals to approximately 60,000 new cases of DCIS diagnosed in this country each year. Nearly all women diagnosed at this early stage of breast cancer can be cured.

DCIS is treated at the Abramson Cancer Center, within the Rena Rowan Breast Cancer Center, and within the Integrated Breast Center at Pennsylvania Hospital. 

Symptoms of DCIS

Generally, there are no signs or symptoms of DCIS. It is usually not something that a patient or physician can feel. Some people have a lump or slight discharge from the nipple, but most cases of DCIS are found on a mammogram.

If DCIS is suspected on a mammogram, a biopsy may be ordered.