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How does a close DCIS margin factor into surgical and radiation decision making for Stage I invasive ductal carcinoma after breast conserving surgery?

Do you use no tumor on ink for margin even if DCIS is the component close to the margin?
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Radiation Oncology · Varian Medical Systems/Allegheny health network
Answered on · Updated on
  1. Based on SSO and ASTRO guidelines for invasive tumor, no tumor at inked margin is considered negative by us for suitability for adjuvant RT.
  2. If there was calcification as part of the mammographic finding, then for close DCIS we would look at the specimen radiograph and also consider pre-RT mammogra...

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