Human Papillomavirus and Anal Cancer: Prevalence, Genotype Distribution, and Prognosis Aspects from Midwestern Region of Brazil

Table 3

Distribution of HPV genotypes according to histological type of anal carcinoma.

HPV	SCC (37/42)		Adenocarcinoma (14/32)		Other carcinomas (5/7)
	n	%	n	%	n	%
HPV 16 only	25	67.6	9	64.3	2	40.0
HPV 16 and others	4	10.8	1	7.1	1	20.0
HPV 18 only	2	5.4	1	7.1	0	0.0
HPV 18 and others	0	0.0	0	0.0	0	0.0
HPV 16 and HPV 18	1	2.7	1	7.1	0	0.0
Others single HPV	5	13.5	2	14.3	2	40.0
HPV negative	5	11.9	18	56.3	2	28.6

Other HPV: HPV 6, 11, 33, 35, 39, 52, 56, 58, and 74. Other carcinomas: basaloid carcinoma, neuroendocrine, and cloacogenic.