title: Pigmented Bowen's disease presenting with a "starburst" pattern.
abstract: Pigmented Bowen's disease (pBD) is an uncommon in situ squamous cell carcinoma of the skin usually presenting as a dark scaly plaque involving chronically exposed sites, which is not uncommonly mistaken for other similar pigmented lesions, such as melanoma, pigmented basal cell carcinoma or seborrheic keratosis [1,2]. Dermoscopy has been proven to improve its diagnosis by showing several findings, i.e., gray/brownish dots in linear arrangement, scales, coiled vessels, focal/multifocal amorphous hypopigmentation and bluish structureless areas [1,2]. However, pBD may sometimes display dermoscopic features which are typical of other pigmented lesions, thus making its recognition quite troublesome despite the use of dermoscopy [1,2]. We report a case of pBD with a "starburst" pattern, discussing its dermoscopic differential diagnosis.
authors.affiliation: Department of Dermatology, Hôpital Saint-Louis, Université Paris 7 Diderot, Paris, France.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Maione
authors.affiliation: Department of Dermatology, University of Udine, Italy.
authors.forename: Enzo
authors.initials: E
authors.lastname: Errichetti
authors.affiliation: Department of Pathology, Hôpital Saint-Louis, Université Paris 7 Diderot, Paris, France.
authors.forename: Sara Laurent
authors.initials: SL
authors.lastname: Roussel
authors.affiliation: Department of Dermatology, Hôpital Saint-Louis, Université Paris 7 Diderot, Paris, France.
authors.forename: Celeste
authors.initials: C
authors.lastname: Lebbé
keywords: Bowen; dermoscopy