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- Title
Dermoscopy of chronic superficial scaly dermatitis (small‐plaque parapsoriasis): a controlled comparative morphological study.
- Authors
Errichetti, Enzo; Lallas, Aimilios; Apalla, Zoe; Stinco, Giuseppe
- Abstract
Dear Editor, Chronic superficial scaly dermatitis (CSSD), also known as small-plaque parapsoriasis or digitate dermatosis, is a benign chronic condition of unknown etiology characterized by asymptomatic/moderately itchy, round, oval or finger-like, slightly scaly, erythematous patches having a pinkish or brownish hue that occur most commonly on the limbs and trunk of middle-aged people.1,2 Recognizing CSSD is usually a straightforward task, yet it may sometimes be clinically mistaken for similar conditions, including psoriasis, eczema, and patch-stage mycosis fungoides.1,2 Over the last few years, dermoscopy has been shown to improve the clinical diagnosis of several inflammatory conditions, with consequent reduction of misdiagnoses/mistreatments.3-7 The aim of this observational retrospective study was to describe the dermoscopic features of CSSD, comparing them with those of its main differential diagnoses, in order to find possible dermoscopic clues. A total of 17 histologically proven consecutive instances of CSSD (11M and 6F; mean age: 54.2 years) were included, along with 30 controls, that is, 10 cases of psoriasis (6M and 4F; mean age: 48.4 years), 10 of eczema (6M and 4F; mean age: 51.3 years), and 10 of patch-stage mycosis fungoides (4M and 6F; mean age: 58.6 years); all the patients had not received any treatment during the 6 weeks prior to evaluation.
- Subjects
SKIN inflammation; MYCOSIS fungoides; LUPUS erythematosus
- Publication
International Journal of Dermatology, 2021, Vol 60, Issue 3, pe94
- ISSN
0011-9059
- Publication type
Article
- DOI
10.1111/ijd.15214