Preoperative breast MRI features associated with positive or close margins in breast-conserving surgery

Highlights: • Breast MRI findings before surgery are associated with positive resection margins. • It is important to detect nonmass enhancement or multifocality in invasive cancer. • Use of preoperative MRI can help reduce the rate of positive margins and reexcisions. - Abstract: PurposeTo determine preoperative magnetic resonance imaging (MRI) features associated with positive or close margins in patients with breast cancer who underwent breast-conserving surgery (BCS).