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From Phoenix5's Prostate Cancer Glossary
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margin

Definition: In pathology, it refers to the outer edge of the tissue. A "negative margin" means that there was a distance between the tumor and the edge of the tissue and that the cancer cells are considered contained. This would be an ideal pathology report after removal of the prostate and the pathology exam. A "postive" margin would mean cells were found at the edge but even this does not mean the cancer may have escaped.

For more information: A good write up from Harvard Medical schools.


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Definitions are provided for education only and are not medical advice. Created exclusively for Phoenix5. © 2002 Phoenix5.