Table 3: Immunohistochemical data, including hormone receptor and HER2/neu status.

Case	p63	CK5/6	c-kit	EGFR	GATA-3	Syn	Chr	Ki-67 (%)	ER	PR	HER2
1	p+	ND	ND	ND	ND	-	-	30	+	+	-
2	P+	p+	w+	-	p+	-	-	2	-	+	-
3	-	p+	w+	f+	-	-	-	20	-	-	-
4	+^*	+^*	-	+^*	+^**	-	-	30	+	-	-
5	ND	ND	ND	ND	ND	-	-	ND	-	-	-
6	-	-	-	-	+	-	-	40	+	+	-
7	-	ND	w+	ND	ND	-	-	ND	-	-	ND
8	-	p+	+	-	-	-	-	20	-	-	-
9	ND	ND	ND	ND	ND	-	-	20	-	-	-
10	ND	ND	ND	ND	ND	ND	ND	ND	-	-	-
11	-	-	-	ND	-	-	-	ND	-	-	-

^*Positive in squamous areas

^**Positive in non-squamous areas

Syn-synaptophysin; Chr-chromogranin; ND-not done/tissue not available; p-patchy; w-weak; f-focal