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Bowen's disease of the nail matrix presenting as melanonychia: detection of human papillomavirus type 56.

© 2009 The Authors. doi: 10.2340/00015555-0723 Journal Compilation © 2009 Acta Dermato-Venereologica. ISSN 0001-5555 Sir, Bowen’s disease (BD) is one of the most common premalignant conditions of the skin. It can occur at any location on the body, presenting as a reddish plaque with scales. Rare cases of presentation as lesions on the nail unit with longitudinal melanonychia have also been described (2). Trauma, exposure to radiation, and intake of arsenic have been cited as causative factors of BD (1, 2). Recently human papillomavirus (HPV), in most cases HPV type 16, has been implicated as another causal agent of BD (1). We report here a case of BD presenting as melanonychia on the nail matrix detected as HPV type 56 (HPV-56) (2, 3).