DETECTION OF HUMAN PAPILLOMAVIRUS TYPE-57 IN A CASE OF INVERTED NASALPAPILLOMATOSIS IN JAPAN

Human papillomavirus (HPV) type 57 DNA was detected in recurrent nasal inverted papillomatosis, in a 60-year-old Japanese male, using Southe rn blot hybridization. HPV types 6, 11, 16 and 18 were not detectable in the papilloma. Previous studies have shown that HPV types 6, 11, 16 and 18 were mainly found fn nasal papillomatosis in other laboratorie s but the actual detection rate of virus was low. We speculate that th is low detection rate may bt due to the lack of a method for detecting HPV type 57.