Indications for Partial Breast Irradiation in Breast Cancer

  • Tumor grade ≤ 2
  • Luminal-like subtypes
  • Small tumor (≤ 3 cm)
  • Negative lymphovascular space invasion
  • Low- to moderate-grade ductal carcinoma in situ (DCIS)
  • Age at diagnosis ≥ 50 years
  • Unicentric or unifocal disease
  • Clear surgical margins (> 5 mm)
  • Node negative (including isolated tumor cells)
  • No use of primary systemic therapy

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