26 citations
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January 1993 in “Dermatology” This study found that exclamation mark hairs are not exclusive to alopecia areata and can also appear in trichotillomania, challenging their status as a definitive diagnostic marker.
15 citations
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November 2016 in “Journal of The American Academy of Dermatology” This article discusses the potential of trichoscopy in diagnosing and treating dissecting cellulitis of the scalp and emphasizes the need for early diagnosis to prevent progression but reports no new clinical results.
143 citations
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October 2008 in “Journal of The American Academy of Dermatology” This study found that comma hairs are a distinctive feature of tinea capitis caused by Microsporum canis, distinguishing it from alopecia areata, which is characterized by exclamation mark hairs.
89 citations
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December 2010 in “The Journal of Dermatology” This study describes characteristic trichoscopic features of various hair loss diseases and proposes an algorithmic method for diagnosing them, but reports no new clinical results.
86 citations
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October 2013 in “Dermatologic Clinics” Trichoscopy is a useful non-invasive method for diagnosing different hair loss conditions.