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breast conserving treatment文献资料
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Whole breast radiotherapy afier tumor lumpectomy is based on the premise that that the breast cancer recurrence rate is reduced through the elimination of residual cancer foci in the remaining tissue immediately adjacent to the lumpectomy site and occult multicentric areas of in situ or infiltrating cancer in remote areas of the breast. The relevance of remote foci to ipsilateral breast failure rates after breast conserving treatment is debatable, because 65%～100% of recurrences develop in the same quadrant as the initial tumor. This has led several investigators to question whether radiotherapy must be administered to the entire breast.
