Human papillomavirus DNA in condylomata acuminata from Japanese males

We examined condylomata acuminata from Japanese males for the presence of human papillomavirus (HPV) genomes by Southern blot hybridization. HPV 6/11-related DNA was found in 91% (32/35) of the condylomata. HPV 6a DNA was found in 40% (14/35), HPV 6c DNA in 6% (2/35), and HPV 11a DNA in 37% (13/35). HPV 6-related DNA, which had an unusual PstI-cleavage pattern, was detected in one sample. Types and subtypes of HPV DNA in the samples studied (HPV 6a, 6c, and HPV 11a DNA) were not correlated with the patients' ages nor outcomes of the disease. HPV 16 DNA was not detected in any condyloma acuminatum.