title: Differentiation of pityriasis lichenoides chronica from guttate psoriasis by dermoscopy.
abstract: 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.
authors: Department of Experimental and Clinical Medicine, Institute of Dermatology, University of Udine, Italy.
authors: E
authors: E
authors: Errichetti
authors: Dermatology Clinic, University of Catania, Italy.
authors: F
authors: F
authors: Lacarrubba
authors: Dermatology Clinic, University of Catania, Italy.
authors: G
authors: G
authors: Micali
authors: SOC Dermatologia e Malattie Sessualmente Trasmesse, San Carlo Hospital, Potenza, Italy.
authors: A
authors: A
authors: Piccirillo
authors: Department of Experimental and Clinical Medicine, Institute of Dermatology, University of Udine, Italy.
authors: G
authors: G
authors: Stinco
mesh_terms: D000328:Adult; D046169:Dermoscopy / Q000379:methods*; D003937:Diagnosis, Differential; D005076:Exanthema / Q000175:diagnosis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017514:Pityriasis Lichenoides / Q000175:diagnosis* / Q000473:pathology; D011565:Psoriasis / Q000175:diagnosis* / Q000473:pathology; D055815:Young Adult