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What do the different stages of breast cancer mean?

4 doctors weighed in
Dr. Matthew Fero
Internal Medicine - Oncology
3 doctors agree

In brief: The extent of cancer

...is typically categorized into various stages.
A complete diagnostic evaluation is needed to determine a cancer's stage. Criteria are the size of the primary tumor, the involvement of regional lymph nodes, invasion into tissue outside the breast, or more distant metastasis. Staging systems are usually numbered I-IV with various subdivisions. See http://www.cancer.gov/cancertopics/pdq/treatment/breast/Patient/page2

In brief: The extent of cancer

...is typically categorized into various stages.
A complete diagnostic evaluation is needed to determine a cancer's stage. Criteria are the size of the primary tumor, the involvement of regional lymph nodes, invasion into tissue outside the breast, or more distant metastasis. Staging systems are usually numbered I-IV with various subdivisions. See http://www.cancer.gov/cancertopics/pdq/treatment/breast/Patient/page2
Dr. Matthew Fero
Dr. Matthew Fero
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