Table 3. HER2 receptor status of primary tumors and solid and effusion metastases of patients analyzed in this study.

IHC			Primary N= 69			Solid metastasis N= 15			FISH			Primary N= 66			Solid metastasis N= 15
			-	+	p	-	+	p				-	+	p	-	+	p
HER2	Solid metastasis N = 15	-	12	0	1				HER2	Solid metastasis N=15	-	13	0	1
		+	1	2							+	0	2
	Effusion N = 69	-	53	3	0.73	11	1	1		Effusion N=66	-	56	2	1	13	0	1
		+	5	8		1	2				+	2	6		0	2

Data are shown for immunohistochemistry and FISH.