title: Dermoscopy: a useful auxiliary tool in the diagnosis of type 1 segmental Darier's disease.
abstract: Type 1 segmental Darier's disease is a blaschkolinear variant of Darier's disease resulting from a postzygotic mosaicism. Since it usually lacks diagnostic clues typical of the generalized form, including positive family history of the disease, nail and mucosal abnormalities, and/or acral involvement, its distinction from other acquired inflammatory blaschkolinear dermatoses may often be quite challenging, thus requiring histopathological examination to reach a definitive diagnosis. We report a case of type 1 segmental Darier's disease with its dermoscopic findings in order to show the usefulness of dermoscopy in assisting the noninvasive identification of this condition.
authors.affiliation: Department of Experimental and Clinical Medicine, Institute of Dermatology, University of Udine, Italy.
authors.forename: Enzo
authors.initials: E
authors.lastname: Errichetti
authors.affiliation: Department of Dermatology, "Hôpital Saint Louis", Paris Diderot University, France.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Maione
authors.affiliation: Department of Medical and Biological Sciences, Institute of Anatomic Pathology, University of Udine, Italy.
authors.forename: Enrico
authors.initials: E
authors.lastname: Pegolo
authors.affiliation: Department of Experimental and Clinical Medicine, Institute of Dermatology, University of Udine, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Stinco
keywords: Darier’s disease, dermoscopy; differential diagnosis; mosaicism, type 1 segmental Darier’s disease