Trichoscopic Study of Non-Scarring Alopecia of the Scalp

August 2017 in “ Journal of evolution of medical and dental sciences ”

Salahudeen Mohamed, Roshni Menon, Brinda G David

trichoscopy non-scarring alopecia androgenetic alopecia alopecia areata telogen effluvium hair diameter diversity peripilar sign black dots broken hair yellow dots follicular hair unit empty hair follicles AGA AA TE

TLDR Trichoscopy is effective for diagnosing different types of non-scarring hair loss.

In a 2017 study of 200 patients with non-scarring alopecia, trichoscopy was proven to be an effective diagnostic tool. The study diagnosed 92 patients (46%) with androgenetic alopecia, 70 patients (35%) with alopecia areata, and 36 patients (18%) with telogen effluvium, while 2 patients had both androgenetic alopecia and alopecia areata. Trichoscopic signs included hair diameter diversity in androgenetic alopecia cases, with the peripilar sign being most common. Alopecia areata was characterized by black dots, broken hair, and yellow dots, while telogen effluvium was identified by the presence of one follicular hair unit and empty hair follicles. The study's conclusion emphasized the significant role of trichoscopy in accurately diagnosing different types of alopecia.

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Research cited in this study

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research Trichoscopic Findings of Androgenetic Alopecia and Their Association with Disease Severity

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research Utility of Dermoscopy in Alopecia Areata

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research Dermoscopy in Female Androgenic Alopecia: Method Standardization and Diagnostic Criteria

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Trichoscopy can diagnose female hair loss with high accuracy by looking for specific patterns in hair and scalp appearance.

research Clinical Significance of Dermoscopy in Alopecia Areata: Analysis of 300 Cases

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304 citations, July 2006 in “Journal of The American Academy of Dermatology”

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research Histological Features of Peripilar Signs Associated with Androgenetic Alopecia

95 citations, January 2004 in “Archives of Dermatological Research”

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