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Clinical and Dermoscopic Features of the Scalp in 31 Patients with Dermatomyositis.
- Source :
-
Skin appendage disorders [Skin Appendage Disord] 2017 Aug; Vol. 3 (3), pp. 119-124. Date of Electronic Publication: 2017 Mar 29. - Publication Year :
- 2017
-
Abstract
- Background: Scalp involvement is not directly evaluated in patients with dermatomyositis (DM). Therefore, the exact frequency of scalp dermatomyositis (SDM) and its clinical and trichoscopic characteristics have been poorly described.<br />Objective: The aim of this study was to determine the frequency and clinical and dermoscopic features of SDM in patients diagnosed with DM.<br />Methods: We performed a descriptive prospective, cross-sectional observational study that included all patients diagnosed with DM at a Mexican academic institute over the course of a year.<br />Results: Twenty-four out of 31 patients with DM had scalp involvement at clinical examination, with a prevalence of 77.4%. SDM was clinically characterized by erythema in all cases, scales in 20 (83.3%) patients, nonscarring alopecia in 21 (87.5%) patients, pruritus in 17 (70.8%) patients, and poikiloderma of the scalp in 16 (51.6%) patients. Twenty-eight patients were evaluated by trichoscopy. The most consistent finding was the presence of enlarged capillaries, found in 20 (71.4%) cases, followed by peripilar casts (57.1%) and tufting and interfollicular scales in 14 (50%) cases. Twenty-two patients also had positive nail fold capillaroscopic features similar to those observed by trichoscopy.<br />Limitations: The simple size was limited.<br />Conclusions: Scalp involvement and alopecia are common in patients with DM, and trichoscopy shows features similar to those found at capillaroscopy. Trichoscopy is a very important tool for diagnosis of scalp involvement in patients with DM.
Details
- Language :
- English
- ISSN :
- 2296-9195
- Volume :
- 3
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Skin appendage disorders
- Publication Type :
- Academic Journal
- Accession number :
- 28879187
- Full Text :
- https://doi.org/10.1159/000464469