Videodermoscopy in the evaluation of hair and scalp disorders - 09/08/11
Reprint requests: Antonella Tosti, MD, Department of Dermatology, University of Bologna, Via Massarenti, 1–40138 Bologna, Italy.Bellingham, Washington, and Bologna, Italy
Abstract |
Background |
The standard methods used to diagnose scalp and hair disorders (eg, simple clinical inspection, pull test, biopsy) vary in sensitivity, reproducibility, and invasiveness. Studies on a few entities suggest that use of dermoscopy can improve clinical accuracy, but further investigation is needed.
Objectives |
We sought to: (1) characterize features of several nontumoral scalp and hair conditions using videodermoscopy; and (2) assess the potential usefulness of videodermoscopy in the clinical evaluation of these conditions.
Methods |
Images (×20-70 magnification) obtained with videodermoscopy from 220 patients with various scalp and hair disorders and 15 unaffected control subjects were reviewed for distinguishing features.
Results |
Conditions evaluated included psoriasis (23), seborrheic dermatitis (26), alopecia areata (58), androgenetic alopecia (64), chronic telogen effluvium (7), trichotillomania (12), and primary cicatricial alopecia (30). Clinical features evident to the naked eye were seen in great detail when videodermoscopy was used. Novel features (eg, yellow dots in alopecia areata) were also identified.
Limitations |
Findings require confirmation by blinded, prospective investigation.
Conclusions |
Use of videodermoscopy in the clinical evaluation of scalp and hair disorders improves diagnostic capability beyond simple clinical inspection and reveals novel features of disease, which may extend clinical and pathogenetic understanding.
Le texte complet de cet article est disponible en PDF.Abbreviations used : AGA, DLE
Plan
| Supported in part by the North American Hair Research Society (Dr Ross). Conflicts of interest: None identified. |
Vol 55 - N° 5
P. 799-806 - novembre 2006 Retour au numéro
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