P077 Updates on Trichoscopy in Diagnosing Scalp Disorders: A Systematic Review of Diagnostic Accuracy, Sensitivity and Specificity

June 2025 in “ British Journal of Dermatology ”

Sanjay Mehra

trichoscopy alopecia areata androgenetic alopecia telogen effluvium tinea capitis diagnostic accuracy sensitivity specificity NICE guidelines BAD guidelines AI tools national trichoscopy registry hair loss baldness scalp disorders artificial intelligence National Institute for Health and Care Excellence British Association of Dermatologists

TLDR Trichoscopy is highly effective for diagnosing scalp disorders and should be used more in dermatology.

This systematic review highlights the effectiveness of trichoscopy as a diagnostic tool for scalp disorders, analyzing 36 studies with 11,250 patients. Trichoscopy showed high diagnostic accuracy, surpassing traditional methods, with specific sensitivity and specificity metrics for conditions like alopecia areata, androgenetic alopecia, telogen effluvium, and tinea capitis. The review emphasizes the integration of trichoscopy into routine dermatology practice, aligning with NICE and BAD guidelines, and suggests developing standardized criteria, incorporating trichoscopic education, investing in AI tools, and establishing a national trichoscopy registry. These recommendations aim to enhance diagnostic pathways and improve patient care in dermatology.

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research Quantitative Analysis of the Anatomical Changes in the Scalp and Hair Follicles in Androgenetic Alopecia Using Magnetic Resonance Imaging

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MRI reveals thinner scalps and smaller hair follicles in people with androgenetic alopecia.