Table 2.

Expression of miR-21 in normal, FEA and DCIS detected by RNA-ISH

Patient nr.	Normal breast	FEA	DCIS
1	-	-	±
2	+	+	+
3	-	+	na
4	-	+	+
5	-	+	+
6	-	-	na
7	-	-	+
8	+	-	+
9	-	-	-
10	-	±	+
11	-	+	+
12	-	-	-
13	-	-	na
14	-	-	-
15	-	+	+
Total	2/15 (13.33%)	7/15(46.67%)	9/12 (75%)

na, DCIS component not present in tissue block