January 2020 in “Indian dermatology online journal” Alopecia areata can show unusual red-dotted vessels and dithranol treatment may mask typical patterns.
44 citations
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August 2008 in “Archives of Dermatology” Trichoscopy is a non-invasive way to diagnose hair and scalp problems without needing hair samples.
April 2013 in “Journal of the American Academy of Dermatology” Follicular red dots can appear where alopecia areata and vitiligo overlap.
143 citations
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November 2008 in “Journal of The American Academy of Dermatology” Comma hairs are a specific sign of tinea capitis when viewed with videodermatoscopy.
June 2019 in “Journal of evolution of medical and dental sciences” Dermoscopy is useful for tracking alopecia areata treatment, with yellow dots and new vellus hairs being good indicators of hair regrowth.