Comparison of Fluorescence In Situ Hybridization and Chromogenic In Situ Hybridization for Low and High Throughput HER2 Genetic Testing

Table 4

Discrepancy cases between the five different HER2 genetic ratio assays.

	CISH; ZytoVision	CISH; Dako	FISH; ZytoVision	FISH; Dako	IQ-FISH; Dako	IHC; HER2
Case 15	1,7	2,1	1,9	3,0	1,9	2+
Case 48	2,1	2,1	2,1	2,3	1,9	2+
Case 69	3,7	4,8	7,1	7,2	1,4	2+
Case 74	1,5	1,2	1,6	2,2	1,6	1+
Case 84	2,0	1,4	2,0	1,9	1,8	1+
Case 90	2,9	1,9	2,4	2,4	3,7	2+

CISH: chromogenic in situ hybridization; FISH: fluorescence in situ hybridization.