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What are the types of stage zero breast cancer?

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There are three types of stage 0 breast cancer:

  • Noninvasive Paget’s disease, a rare form of breast cancer in the nipple
  • Ductal carcinoma in situ. This is what most people mean when they talk about stage 0 breast cancer. The abnormal cells are still in your milk ducts and haven’t affected the fatty tissue that makes up most of your breast. There’s no known cause, and most people don’t have any symptoms, though you may notice a lump or bloody discharge from your nipple. The abnormal cells may or may not become invasive and start to spread. There’s no way to predict if this will happen.

From: Understanding Stage 0 Breast Cancer WebMD Medical Reference

SOURCES:

American Cancer Society: “Breast Cancer Survival Rates, by Stage,” "How is Breast Cancer Classified?" “How is Breast Cancer Staged?” “Understanding Your Pathology Report,” "Breast Cancer."

NIH National Cancer Institute: “NCI Dictionary of Cancer Terms,” “Paget Disease of the Breast.”

National Breast Cancer Foundation: “Stages 0 and 1.”

Mayo Clinic: “Ductal Carcinoma In Situ (DCIS).”

National Comprehensive Cancer Network: “NCCN Guidelines for Patients: Breast Cancer Carcinoma in Situ.”

UT Southwestern Medical Center: “Personalized Treatment is Key for Stage 0 Breast Cancer.”

Prescrire International , December 2013.

Reviewed by Laura J. Martin on August 12, 2018

SOURCES:

American Cancer Society: “Breast Cancer Survival Rates, by Stage,” "How is Breast Cancer Classified?" “How is Breast Cancer Staged?” “Understanding Your Pathology Report,” "Breast Cancer."

NIH National Cancer Institute: “NCI Dictionary of Cancer Terms,” “Paget Disease of the Breast.”

National Breast Cancer Foundation: “Stages 0 and 1.”

Mayo Clinic: “Ductal Carcinoma In Situ (DCIS).”

National Comprehensive Cancer Network: “NCCN Guidelines for Patients: Breast Cancer Carcinoma in Situ.”

UT Southwestern Medical Center: “Personalized Treatment is Key for Stage 0 Breast Cancer.”

Prescrire International , December 2013.

Reviewed by Laura J. Martin on August 12, 2018

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Do you need to treat stage zero breast cancer?

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