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Differentiation of pityriasis lichenoides chronica from guttate psoriasis by dermoscopy
Author(s) -
Errichetti E.,
Lacarrubba F.,
Micali G.,
Piccirillo A.,
Stinco G.
Publication year - 2015
Publication title -
clinical and experimental dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 78
eISSN - 1365-2230
pISSN - 0307-6938
DOI - 10.1111/ced.12580
Subject(s) - medicine , dermatology , psoriasis , incidence (geometry) , pityriasis rosea , biopsy , pathology , dermatoscopy , melanoma , physics , optics , cancer research
Summary Clinical differentiation between pityriasis lichenoides chronica ( PLC ) and guttate psoriasis ( GP ) may sometimes be a difficult task, which often requires histological analysis to reach a definitive diagnosis. In this study, PLC and GP lesions were examined using dermoscopy, and the significance of specific dermoscopic findings was investigated in order to facilitate their differentiation and decrease the number of cases requiring biopsy. We found that the incidence of orange–yellowish structureless areas, focal dotted vessels and nondotted vessels was statistically significant in PLC , while the incidence of diffuse dotted vessels was statistically significant in GP .