What is in situ breast cancer?
A condition in which abnormal cells are found in the tissues of the breast. There are 2 types of breast carcinoma in situ: ductal carcinoma in situ (DCIS) and Paget disease of the nipple. DCIS is a condition in which the abnormal cells are found in the lining of a breast duct.
Is in situ breast cancer malignant?
Ductal carcinoma in situ (DCIS) is a condition that affects the cells of the milk ducts in the breast. The cells lining the milk ducts turn malignant (cancerous) but stay in place (in situ). DCIS is an early form of breast cancer.
What does in situ mean for breast?
Ductal carcinoma in situ (DCIS) is the presence of abnormal cells inside a milk duct in the breast. DCIS is considered the earliest form of breast cancer. DCIS is noninvasive, meaning it hasn’t spread out of the milk duct and has a low risk of becoming invasive.
What does in situ mean in cancer?
(in SY-too) In its original place. For example, in carcinoma in situ, abnormal cells are found only in the place where they first formed. They have not spread.
What is the survival rate for ductal carcinoma in situ?
Although DCIS doesn’t pose any risk, it can turn invasive and spread to other tissues at any time. The five-year survival rate of ductal carcinoma in situ (DCIS), also known as stage 0 breast cancer, is over 98 percent.
How serious is ductal carcinoma in situ?
DCIS is non-invasive because it hasn’t spread beyond the milk ducts into other healthy tissue. DCIS isn’t life-threatening, but if you’re diagnosed with DCIS, you have a higher-than-average risk of developing invasive breast cancer later in life.
What is the treatment for carcinoma in situ?
TREATMENT APPROACH Patients with DCIS undergo local treatment with breast-conserving therapy (BCT) or mastectomy. BCT consists of lumpectomy (also called breast-conserving surgery, wide excision, or partial mastectomy) followed in most cases by adjuvant radiation.
What stage is cancer in situ?
Carcinoma in situ is sometimes called stage 0 cancer or ‘in situ neoplasm’. It means that there is a group of abnormal cells in an area of the body. The cells may develop into cancer at some time in the future.
Do I need a mastectomy for DCIS?
Most women with DCIS or breast cancer can choose to have breast-sparing surgery, usually followed by radiation therapy. Most women with DCIS or breast cancer can choose to have a mastectomy. You have small breasts and a large area of DCIS or cancer. You have DCIS or cancer in more than one part of your breast.
How serious is carcinoma in situ?
These in situ cells are not cancer, but they could become malignant. If they do this, they can start to invade other tissues. For this reason, a doctor will recommend treatment to remove the cells. This will reduce the risk of cancer developing later.
What stage is carcinoma in situ?
Can in situ cancer spread?
Carcinoma in situ refers to cancer in which abnormal cells have not spread beyond where they first formed. The words “in situ” mean “in its original place.” These in situ cells are not malignant, or cancerous. However, they can sometime become cancerous and spread to other nearby locations.
What stage is ductal carcinoma in situ?
Stage 0 breast cancer, ductal carcinoma in situ (DCIS) is a non-invasive cancer where abnormal cells have been found in the lining of the breast milk duct. In Stage 0 breast cancer, the atypical cells have not spread outside of the ducts or lobules into the surrounding breast tissue.
Is carcinoma in situ reversible?
Unlike mild or moderate dysplasia in which similar changes are seen but which involve only a portion of the thickness or depth of epithelium, carcinoma in-situ is not reversible with the elimination of the causative agent such as cigarette smoke, and eventually is expected to become invasive carcinoma.
Can carcinoma in situ be cured?
About 1 in 5 new breast cancers will be ductal carcinoma in situ (DCIS). Nearly all women with this early stage of breast cancer can be cured. DCIS is also called intraductal carcinoma or stage 0 breast cancer. DCIS is a non-invasive or pre-invasive breast cancer.