Trichoscopy of dissecting cellulitis of the scalp: Exclamation mark hairs and white dots as markers of disease chronicity

Trichoscopy of primary cicatricial alopecias: an updated review

“…The late stage of DCS is characterized by confluent whitish areas lacking follicular ostia . Fibrotic white dots are seen in patients with longer duration of disease . Perifollicular pustules have also been reported in trichoscopy of DCS .…”

“…Trichoscopy of DCS has been reported in seven studies with total 56 cases. Early alopecia in DCS is reversible and trichoscopy resembles the features of non‐scarring alopecia while late lesions are permanent and show characteristic trichoscopic findings of PCA …”

“…Yellow dots, black dots, vellus hairs, red dots, cadaverized hairs and empty follicular openings are frequent findings in trichoscopy of early DCS which resemble the findings of active alopecia areata and require prompt medical treatment . Exclamation mark hairs, which are considered characteristic of alopecia areata, were not found by Tosti et al .…”

“…Black dots are seen with higher prevalence in DCS compared to other PCAs . Broken hairs were reported in 50% (9/18) of DCS cases in a study . Broken hairs and black dots are frequent findings in NCAs such as alopecia areata, tinea capitis and trichotillomania .…”

“…in any of the DCS patients included in their study. However, Segurado‐Miravalles et al . reported these hairs in 11% (2/18) cases with recent‐onset disease (mean evolution time of 0.75 years).…”