A member asked:

Do surgical margins matter for benign breast conditions (after excisional biopsy surgery)? would re-excision be necessary if no malignancy is found?

8 doctors weighed in across 3 answers

No: If benign, margins are irrelevant. Hope this helps.

Answered 10/4/2016

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Dr. Reza Shirazi answered

Specializes in Radiation Oncology

Possibly yes: Carcinoma insitu, is a pre cancerous lesion, it has the potential of becoming cancer and is treated aggressively. Getting a clear margin around it is a good idea and recommended as it is with malignant lesions. Carcinoma insitu is not benign but it has not grown into a full cancer. Just making sure this is not what you were referring to.

Answered 11/27/2017

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Yes for some: Dcis needs to be completely removed and the wider the margin the better up to 1 cm. Positive margins should b reexcised. Certain other benign breast lesions likely don't need complete removal always. Negative margin for dcis means 2mm or more.

Answered 6/15/2014

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