Cytokeratin on Frozen Sections of Sentinel Node May Spare Breast Cancer Patients Secondary Axillary Surgery

Table 3

Diagnostic values for frozen section with and without IHC.

	IHC	No IHC
Sensitivity	87.3% (103/118)	60.3% (70/116)
Specificity	100% (217/217)	100% (220/220)
Positive predictive value	100% (103/103)	100% (70/70)
Negative predictive value	93.5% (217/232)	82.6% (220/266)
Accuracy	95.5% (320/335)	86.0% (290/336)