Abstract
We report the case of a 23-year-old woman who developed bowenoid papulosis of the vulva and subsequent periungual Bowen's disease. She had a history of a long standing periungual wart on her right thumb before the outbreak of periungual Bowen's disease. By HPV DNA chip, human papillomavirus (HPV) 11, 18 and 31 were identified from the periungual lesions, and HPV 11, 18 and 33 from the vulvar lesion. This case supports the theory of anogenital-digital spread of HPV, and proposes that the periungual wart may change into Bowen's disease by mucosal HPVs. To the best of our knowledge, this case is important as the first Korean case of periungual Bowen's disease concurrent with bowenoid papulosis of the vulva.