Margin Width Should Not Still Enforce a Systematic Surgical Re-excision in the Conservative Treatment of Early Breast Infiltrative Ductal Carcinoma

Background In cases where breast conservative surgery was performed for infiltrative ductal carcinoma (IDC), margin status is an independent prognostic factor for local ipsilateral relapse (LIR). There is no validated definition of a clear margin. We investigated factors associated with residual disease on re-excision specimen and the impact of margin status on the risk of LIR.