Table 2.

Oncogenic viruses identified by PCR in patient samples

Case #	Diagnosis	HPV	EBV	KSHV	CMV	BK	JC	HSV 1/2
1	OSSN	+	+	-	-	-	-	+
2	Pterygium	+	+	+	+	-	-	+
3	OSSN	+	+	+	+	-	-	+
4	OSSN	+	+	+	-	-	-	+
5	OSSN	+	+	-	+	-	-	+
6	OSSN	+	+	+	+	-	-	+
8	OSSN	+	+	+	-	-	-	+
9	OSSN	+	+	-	-	-	-	+
11	OSSN	+	+	+	-	-	-	-
12	OSSN	+	+	+	-	-	-	-
13	OSSN	-/+	+	-	+	-	-	-
14	OSSN	-	-	+	+	-	-	+
15	Pterygium	-	+	+	+	-	-	+
16	Pterygium	-	+	-	+	-	-	+
17	Pterygium	-	+	+	-	-	-	+
18	OSSN	-	+	+	+	-	-	+
19	OSSN	-	+	+	-	-	-	-
21	OSSN	-	+	+	-	-	-	-
22	OSSN	-	+	-	-	-	-	-
23	OSSN	-	+	+	+	-	-	+
24	OSSN	-	+	+	+	-	-	-
25	Pterygium	-	+	-	+	-	-	+
26	Pterygium	+	-	+	+	-	-	-
27	Pterygium	+	+	+	-	-	-	+
28	OSSN	+	+	-	-	-	-	+
29	OSSN	+	-	+	+	-	-	+
30	Pterygium	+	+	-	+	-	-	-
31	OSSN	+	+	+	+	-	-	+
32	OSSN	-	+	-	+	-	-	+
33	OSSN	+	-	+	+	-	-	+
34	OSSN	+	+	+	-	-	-	-
35	OSSN	+	-	+	-	-	-	-
36	OSSN	+	+	-	+	-	-	+
37	OSSN	+	-	+	+	-	-	+
38	OSSN	+	+	+	+	-	-	+
39	OSSN	+	+	+	+	-	-	+

Oncogenic viruses identified in each OSSN and pterygium patient as determined by PCR analysis. Most cases tested positive for HPV, EBV, KSHV, and HSV. HPV results for samples 14-24 were intriguing since most were positive on IHC and ISH. None was positive for BK and JC.