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False-negative rate of biopsies identifying pathological complete response of the breast
| Biopsies | Residual disease in surgical specimen | |||||
|---|---|---|---|---|---|---|
| No (n = 89) | Yes (n = 78) | |||||
| rPR | rCR | Total | rPR | rCR | Total | |
| Tumor-neg | 8 (9%) | 81 (91%) | 89 (100%) | 3 (4%) | 26 (33%) | 29 (37%) |
| Tumor-pos | 0 | 0 | 0 | 20 (26%) | 29 (37%) | 49 (63%) |
| Total | 8 (9%) | 81 (91%) | 89 (100%) | 23 (29%) | 55 (71%) | 78 100%) |
Data are n (%). rCR, radiologic complete response on MRI. rPR, radiologic partial response on MRI
