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Article Type

Review

Abstract

Hair loss can have significant effects on patients«SQ» quality of life, and a prompt diagnosis of the different types of alopecias and early intervention are needed. This review highlights the main dermoscopic findings in the different types of alopecia, such as androgenetic alopecia, alopecia areata, trichotillomania, lichen planopilaris, and discoid lupus erythematosus of the scalp. We believe that this important tool has been demonstrated to help dermatologists in finding the right site for the biopsy or, furthermore, avoiding unnecessary biopsies. Data sources were medical text books, medical journals, and medical websites that have updated research with the key word Dermoscopy in the title of the paper. Systematic reviews that addressed dermoscopy, its impact on dermatological lesions, and the role of physicians in prevention and management were selected. A special search was conducted at midline with the key word Dermoscopy in the title of the papers; extraction was made, including assessment of the quality and the validity of papers that met the prior criteria that describe Dermoscopy and its use in the diagnosis of hair disorders. Each study was reviewed independently, and the data obtained were rebuilt in new language according to the need of the researcher and arranged into topics through the article. Hair and scalp dermoscopy (trichoscopy) is a fast and noninvasive technique that allows the identification of hair and scalp diseases on the basis of analysis of trichoscopy structures and patterns without the need for removing hair for diagnostic purposes or unnecessary biopsies. Dermoscopy may be useful in the differential diagnosis of various hair and scalp disorders such as alopecia areata, androgenetic alopecia, and tenia capitis and also in the differential diagnosis between discoid lupus erythematosus and lichen planopilaris.

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