Table 2.

The immunostains performed on all cases

Case	CD30 staining in LP cells	CD45	CD20	PAX5	BCL6	BOB1/OCT2	EBER
1	+, rare	+	+	ND	ND	ND	ND
2	++, rare	ND	+	ND	ND	ND	−
3	++, rare	ND	+	ND	ND	ND	ND
4	++, rare	+	+	ND	ND	ND	ND
5	++, rare	ND	+	ND	ND	ND	−
6	+, rare	ND	+	+	+	ND	−
7	+, rare	+	+	ND	ND	ND	ND
8	+, rare	ND	+	ND	+	ND	ND
9	+, rare	ND	+	+	+	+/+	ND
10	++, many	+	+	ND	+	+/+	−
11	+, rare	+	+	ND	ND	ND	ND
12	++, many	ND	+	+	+	+/+	−
13	+, rare	ND	+	ND	ND	ND	ND
14	+, rare	+	+	ND	ND	ND	−
15	+, rare	Faint +	+	ND	ND	+/+	−
16	+, rare	ND	+	ND	ND	+/+	ND
17	+, rare	ND	+	ND	ND	ND	ND
18	+, rare	ND	+	ND	ND	ND	ND
19	+, rare	ND	+	+	+	+/+	−
20	++,many	+	+	+	+	+/+	−
21	+, rare	ND	+	+	+	+/+	ND

+ faint staining of LP cells, ++ strong staining of LP cells

ND not done