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Health Library

Welcome to the comprehensive Health library of Maternal Gynerations. The information shared below is provided to you as an educational and informational source only and is not intended to replace a medical examination or consultation, or medical advice given to you by a physician or medical professional.

What Is Breast Cancer?C¡ncer de seno

What Is Breast Cancer?

Having breast cancer means that some cells in your breast are growing abnormally. Learning about the different types and stages of breast cancer can help you take an active role in your treatment.

Changes in Your Breast

Your entire body is made of living tissue. This tissue is made up of tiny cells. You can't see these cells with the naked eye. Normal cells reproduce (divide) in a controlled way. When you have cancer, some cells become abnormal, changing shape. These cells may divide quickly and spread into other parts of the body.

Cutaway view of normal breast

Normal breast tissue is made of healthy cells. They reproduce new cells that look the same.

Cutaway view of breast with tumor

Noninvasive breast cancer (carcinoma in situ) occurs when cancer cells are only in the ducts.

Cutaway view of breast with tumor

Invasive breast cancer occurs when abnormal cells move out of the ducts or lobules into the surrounding breast tissue.

Cutaway view of breast with tumor

Metastasis occurs when cancer cells move into the lymph nodes or bloodstream and travel to another part of the body.

Stages of Breast Cancer

Several tests are used to measure the size of a tumor and learn how far it has spread. This is called staging. The stage of your cancer will help determine your treatment. Based on American Cancer Society guidelines, the stages of breast cancer are:

  • Stage 0. The cancer is noninvasive. Cancer cells are found only in the ducts (ductal carcinoma in situ).

  • Stage I. The tumor is 2 cm or less in diameter. It has invaded the surrounding breast tissue, but has not spread to the underarm lymph nodes.

  • Stage II. The tumor is larger than 2 cm or has spread to the lymph nodes under the arm.

  • Stage III. The tumor is larger than 5 cm. Or the tumor has spread to the skin, chest wall, or nearby lymph nodes.

  • Stage IV. The tumor has spread to the bones, lungs, or lymph nodes far away from the breast.

Recurrent breast cancer. When the cancer returns despite treatment.

 

Date Last Reviewed: 2007-01-15T00:00:00-07:00

Date Last Modified: 2003-06-01T00:00:00-06:00


For excellent fertility, obstetrics and gynecology services, visit Maternal Gynerations in Lawrenceville or Dacula. We provide family planning consultations and gynecologic cancer screening. Call 770.513.4000 or visit our Patient Portal to view your account or schedule your consultation with us. Our patients come to us from Dacula, Lawrenceville, Suwanee, Winder and Buford.

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