Table 2 Minimum margin size recorded for patients who underwent breast-conserving surgery (BCS).

From: Pathological features of 11,337 patients with primary ductal carcinoma in situ (DCIS) and subsequent events: results from the UK Sloane Project

Margin size (mm) BCS Percent
0 233 3%
<1 237 3%
1–1.9 614 8%
2–4.9 1559 20%
5–9.9 2015 25%
≥10 2814 35%
Clear 122 2%
Unknown 340 4%
Total 7934 100%