| | American Brachytherapy Society [131] | American Society of Breast Surgeons [132] |
Age | ≥50 years | ≥45 years |
Histology | Invasive Ductal Carcinoma | Invasive Ductal Carcinoma Ductal Carcinoma In Situ |
Stage/Size | T1 and T2 ≤ 3 cm | T1 or T2 ≤ 3 cm |
Margin Status | Negative No tumor at inked margin | Negative at least 2 mm in all directions |
Lymph Nodal Status | Negative (N0) Axillary dissection orsentinel lymph node evaluation required | Negative (N0) Axillary dissection orsentinel lymph node evaluation required |
Distant Metastases | None | None |