Breast Cancer Preoperative Staging: Does Contrast-Enhanced Magnetic Resonance Mammography Modify Surgery?

Table 4

Change in surgical management based on CE-MRM.

Treatment change	Change	Beneficial	FP	FN
	N (%)	N (%)	N (%)	N (%)
(A) Double lumpectomy or wider excision	57 (48.3)	41 (71.9)	11 (19.3)	5 (8.8)
(B) Mastectomy	41 (34.7)	40 (97.6)	1 (2.4)	0
(C) Contra lateral surgery: (i) alone; (ii) in addition to (A); (iii) in addition to (B)	6 (5.1); 8 (6.8); 6 (5.1)	6 (100); 6 (75); 6 (100)	0; 1 (12.5); 0	0; 1 (12.5); 0
Total	118 (100)	99 (84)	13 (11)	6 (5)

𝑁: number of patients.
FP: false positives.
FN: false negatives.