Cancer Treatment Centers of America

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Breast cancer stages

Making an educated treatment decision begins with the stage, or progression, of the disease. Using the results from your diagnostic tests, your care team at Cancer Treatment Centers of America (CTCA) will develop an appropriate treatment plan for you.

If you have been recently diagnosed, we will review your pathology to confirm you have received the correct diagnosis and staging information, and develop a personalized treatment plan. If you have a recurrence, we will perform comprehensive testing and identify a treatment approach that is suited to your needs.

Video: Cancer Staging

Cancer Staging

Breast cancer stages

The stage of breast cancer is one of the most important factors in evaluating treatment options. Our cancer doctors use a variety of diagnostic tests to evaluate breast cancer and develop the appropriate treatment plan for you.

Stage 0 (noninvasive, carcinoma in situ) breast cancer

In stage 0, there is no evidence of cancer cells breaking out of the part of the breast in which they started, or of getting through to or invading neighboring normal tissue.

Stage I breast cancer

In stage I, the tumor measures up to two centimeters and no lymph nodes are involved.

Stage II (invasive) breast cancer

In stage II, the tumor measures between two to five centimeters, or the cancer has spread to the lymph nodes under the arm on the same side as the breast cancer.

Stage III (locally advanced) breast cancer

In stage III, the tumor in the breast is more than two inches in diameter across and the cancer is extensive in the underarm lymph nodes, or has spread to other lymph nodes or tissues near the breast.

Stage IV (metastatic) breast cancer

In stage IV, the cancer has spread beyond the breast, underarm and internal mammary lymph nodes to other parts of the body near to or distant from the breast.

Recurrent breast cancer

In recurrent breast cancer, the disease has returned in spite of the initial treatment.

We're here to guide you through the cancer journey

We understand you may be feeling overwhelmed with questions and concerns about your type of cancer and what it all means. We're here to help guide you through the process.

Our hospital
Explore our cancer hospitals, which house the latest treatments, technologies and integrative oncology services under one roof.
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Discuss treatment options with an Oncology Information Specialist, who is available 24/7 at (800) 615-3055, or chat with us.

An accurate cancer diagnosis

accurate cancer diagnosis

Our team of cancer experts uses advanced, minimally invasive diagnostic technology to detect cancerous cells anywhere in the body.

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