Treatment Of Breast Cancer By Stage


What Types Of Cancer Are Diagnosed As Stage 0 & 1 Breast Cancer?

The stage of cancer indicates the size of the tumor of abnormal cells và whether or not those cells are contained khổng lồ the place of origin. The most common type of breast cancer isductal carcinoma in situ (DCIS), indicating the cancer cell growth starts in the milk ducts.

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What does the term, “in situ” mean?

Stage 0 cancers are called “carcinoma in situ.” Carcinoma means cancer và “in situ” means “in the original place.” Three possible types of “in situ carcinoma” of the breast tissue are:

DCIS – Ductal carcinoma in situLCIS – Lobular carcinoma in situPaget disease of the nipple

What Is Stage 0 DCIS?

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. Ductal Carcinoma In Situ is very early cancer that is highly treatable, but if it’s left untreated or undetected, it can spread into the surrounding breast tissue.


What is Stage 0 LCIS?

Lobular carcinoma in situ at Stage 0 generally is not considered cancer. Although it has carcinoma in the name, it really describes a growth of abnormal but non-invasive cells forming in the lobules. Some experts prefer the name lobular neoplasia for this reason because it accurately refers to lớn the abnormal cells without naming them as cancer. LCIS, however, may indicate a woman has an increased risk of developing breast cancer.

If you have beendiagnosedwith LCIS, your doctor may recommend regularclinical breast examsandmammograms. He or she may also prescribe Tamoxifen, ahormone therapymedication that helps prevent cancer cells from growing.

What Does It Mean to lớn Have Stage 1 Breast Cancer?

In Stage 1 breast cancer, cancer is evident, but it is contained lớn only the area where the first abnormal cells began to lớn develop. The breast cancer has been detected in the early stages and can be very effectively treated.

Stage 1 can be divided into Stage 1A và Stage 1B. The difference is determined by the size of the tumor & the lymph nodes with evidence of cancer.


Stage 1A breast cancer means the following mô tả tìm kiếm applies:

The tumor is smaller than the approximate kích thước of a peanut (2 centimeters or smaller) và has not spread khổng lồ the lymph nodes. (2.5 centimeters=1 inch)

Stage 1B breast cancer means one of the following descriptions applies:

Lymph nodes have cancer evidence with small clusters of cells between the approximate kích thước of a pinprick to the approximate width of a grain of rice (.2mm to lớn 2.0 mm).

AND EITHERNo actual tumor is found in the breast.

ORThe tumor is smaller than the approximate kích cỡ of a peanut (2 centimeters or smaller). (2.5 centimeters=1 inch)

Similar to stage 0, breast cancer at this stage is very treatable & survivable. When breast cancer is detected early, & is in the localized stage (there is no sign that the cancer has spread outside of the breast), the 5-year relative survival rate is 100%.

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What Should A Person With Stage 0 Or Stage 1 Breast Cancer Expect Regarding Treatment?


Even though Stage 0 breast cancer is considered “non-invasive,” it does require treatment, typicallysurgeryorradiation, or a combination of the two. Chemotherapyis usually not part of the treatment regimen for earlier stages of cancer.

Stage 1 is highly treatable, however, it does require treatment, typically surgery và often radiation, or a combination of the two. Additionally, you may considerhormone therapy, depending on the type of cancer cells found and your additional risk factors. Lượt thích stage 0, Chemotherapy is often not necessary for earlier stages of cancer.

Material on this page courtesy of National Cancer Institute

MedicallyReviewed on April 15, 2020

Related reading:

Stage 2 (II)…
Breast Cancer Stages

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