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Table 6 Characteristics of incompletely removed tumors (tumor-positive margins)

From: MRI-based response patterns during neoadjuvant chemotherapy can predict pathological (complete) response in patients with breast cancer

  Tumor type MRI-pattern halfway through NAC (R1) MRI-pattern halfway through NAC (R2) MRI pattern after NAC (R1) MRI pattern after NAC (R2) Tumor size after NAC (R1) Tumor size after NAC (R2) Surgery Pathological tumor size
1 Ductal 1 1 1 1 18 23 Lumpectomy 19
2 Lobular 0 2 MRI not performed MRI not performed MRI not performed MRI not performed Mastectomy 105
3 Ductal 1 1 1 3 4 22 Lumpectomy 17
4 Ductal 2 4 4 4 20 15 Mastectomy 80
5 Ductal 1 2 1 4 23 20 Lumpectomy 40
6 Ductal 1 1 1 4 8 15 Lumpectomy 17
7 Ductal 1 4 4 4 6 17 Lumpectomy 21
  1. Abbreviations: MRI, magnetic resonance imaging, NAC neoadjuvant chemotherapy and immunotherapy, R1 reader 1, R2 reader 2
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