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

Studysummary In this study, researchers evaluated trichoscopy in diagnosing non-scarring alopecia and found diagnostic value in observing diverse hair diameters in androgenetic alopecia, black dots and broken hairs in alopecia areata, and empty follicles in telogen effluvium, supporting trichoscopy's utility in differentiating alopecia types.

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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 Trichoscopic Findings of Androgenetic Alopecia and Their Association with Disease Severity

30 citations , March 2015 in “Journal of Dermatology”

This study found that certain trichoscopic features like white peripilar sign, yellow dots, and scalp pigmentation are positively correlated with the severity of androgenetic alopecia in Chinese patients.

research Scalp Dermatoscopic Findings in Androgenetic Alopecia and Their Relations with Disease Severity

30 citations , January 2014 in “Annals of Dermatology”

This study observed no significant relationship between trichoscopic findings and disease severity in male or female androgenetic alopecia, despite some specific patterns correlating with different severity levels in female patients.

research Utility of Dermoscopy in Alopecia Areata

76 citations , January 2011 in “Indian Journal of Dermatology/Indian journal of dermatology”

In this study, researchers identified yellow dots as the most common dermoscopic feature of alopecia areata, followed by black dots, broken hairs, short vellus hair, and tapering hairs.

Scalp Dermoscopy of Androgenetic Alopecia in Asian People

Trichoscopic Study of Non-Scarring Alopecia of the Scalp

Research cited in this study

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

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

research Videodermoscopy in the Evaluation of Hair and Scalp Disorders

research Histological Features of Peripilar Signs Associated with Androgenetic Alopecia