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How Wide Do Lumpectomy Margins Really Need to Be? A Major New Trial Weighs In

If you’ve had a lumpectomy for DCIS, you probably remember waiting on your pathology report — and hoping for the words “clear margins.” Many patients also remember the follow-up conversation: what happens if the margin, the rim of healthy tissue around the removed tissue, comes back narrower than your surgeon would like? For years, the answer has often been a second surgery. A large new analysis of a major randomized trial suggests that answer may be due for a second look.

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