Breast Margin

Positive margin in breast conservation

Diffusely positive margin

  • re-excision
  • mastectomy

Focally positive without extensive intraductal component

  • breast conservation with higher boost dose of 66 Gy.

Extensive intraductal component

  • extensive intraductal component is defined as infiltrating ductal cancer where > 25% of the tumor volume id DCIS and DCIS extends beyond the invasive cancer into surrounding normal breast parenchyma.
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