Table 1.

PCR for MCV DNA in MCC tissues. A plus symbol indicates that the sample was strongly positive by ethidium bromide staining only with one or more primers. A minus symbol indicates that the tissue was negative for all primers. Entries with both plus and minus symbols indicate that the sample was negative by ethidium bromide staining but positive after Southern hybridization of PCR products

MCC cases (n = 10)
Patient	Tissue ID	MCV positivity
1	MCC337	-/+
2†	MCC338	+
2	MCC339	+
3	MCC343	-
4	MCC344	+
5	MCC345	+
6	MCC346	-
7	MCC347	+
7‡	MCC348	+
8	MCC349	+
9	MCC350	+
10	MCC352	+
	Total (%)	8/10 (80)

^†MCC338 was from an infiltrating tumor in skin tissue adjacent to MCC339 tumor.

^‡MCC348 taken from a metastatic lymph node from MCC347.