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Am J Surg. 2008 Jun;195(6):770-4. doi: 10.1016/j.amjsurg.2007.05.052. Epub 2008 Apr 3.

Predictors of re-excision for positive or close margins in breast-conservation therapy for pT1 tumors.

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Breast Care Unit, Department of Gynaecologic Surgery, Besancon University Hospital, Besancon, France.



An increasing number of patients with early-stage breast cancer is being diagnosed by way of population-wide mammographic screening in women. Because breast-conservation therapy (BCT) is the standard treatment, the aim of our study was to determine factors predisposing patients to re-excision for pT1 tumors.


A retrospective study was conducted at Besancon University Hospital in France. Patients with pathologic diagnosis of invasive breast carcinoma <20 mm in size (pT1) and undergoing BCT were selected. From these, "no-re-excision" and "re-excision" subgroups were constituted and compared in terms of patient and tumor characteristics. The intent of all surgeries was therapeutic.


Of 206 patients who underwent BCT for pT1 tumors, 84 (41%) needed re-excision. After multivariate analysis, factors predicting re-excision were the absence of positive histologic diagnosis before surgery (P <.0001), limited superficial and deep surgical resection (P <.0001), multifocal lesion (P <.0001), and size of the in situ carcinoma (P <.0001).


These predictive factors could be useful in reducing the rate of re-excision as well as in identifying patients with multifocal tumors and/or extensive in situ carcinoma whose disease would be better managed by mastectomy.

[Indexed for MEDLINE]

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