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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.

This article describes various hair and scalp examination techniques, including noninvasive, semi-invasive, and invasive methods, noting that trichoscopy is a simple, well-accepted, noninvasive technique for evaluating hair loss patients and monitoring treatment.

In this case report, a 5-year-old boy presented with an itchy patch of hair loss in the frontotemporal region, with trichoscopy revealing specific hair shaft features, such as black dots and corkscrew hairs.

In this study, trichoscopy significantly improved diagnostic accuracy in non-cicatricial alopecia, identifying alopecia areata as the most common cause and effectively aiding diagnosis in 28.2% of ambiguous cases.

In this prospective study, 15 patients with patchy alopecia areata treated with intralesional methotrexate every two weeks showed a significant improvement in hair regrowth and reduction in lesion severity, with changes linked to decreased tissue levels of TNF-α.

In this prospective study, patients with patchy alopecia areata showed significant dermoscopic improvement after three months of topical corticosteroid treatment, with a marked decrease in activity signs and increase in regrowth features.

This case report highlights that alopecia areata can mimic syphilitic alopecia in patients with recent or active syphilis, emphasizing the importance of trichoscopy in accurately diagnosing alopecia types and preventing misdiagnosis.

This study found that trichoscopy is highly effective for diagnosing different types of alopecia, showing an average diagnostic accuracy of 90–95%, with specific features aiding in differentiating forms like androgenetic alopecia and alopecia areata. New technologies and AI improve interpretation objectivity, suggesting expanded clinical integration.

This study found that Trichoscope can effectively reveal clinical features of alopecia areata and androgenic alopecia, making it a useful tool for diagnosis and monitoring.

In this case report, an elderly woman was diagnosed with tinea capitis and eyebrow involvement, which was initially misdiagnosed as alopecia areata, illustrating the importance of trichoscopy in correctly identifying this infection even in uncommon sites like the eyebrow.

In this observational study, researchers found that alopecia areata is associated with specific trichoscopic features, such as black dots, yellow dots, and vellus hair, and highlighted trichoptilosis as a potential overlap feature with other hair disorders, suggesting a need for further differentiation between these conditions.

In this institution-based randomized trial, oral betamethasone mini-pulse therapy for alopecia areata showed a faster therapeutic response compared to oral tofacitinib, as measured by trichoscopic changes and achievement of 50% hair regrowth.

This study found that specific dermoscopic markers, including yellow dots and black dots, are associated with poor prognosis in alopecia areata patients, while vellus hair indicates a more favorable outcome.

This study involved using smartphone applications and low-cost trichoscopy devices to assess various hair and scalp conditions, with diagnoses confirmed through detailed imaging during remote consultations and in-person evaluations.

This study found that trichoscopy can be a helpful, noninvasive tool for identifying specific patterns that correlate with the clinical activity and severity of alopecia areata, enhancing its diagnosis and monitoring.

This case report describes an 8-year-old male with tinea capitis and Trichorrhexis invaginata, who showed significant improvement after treatment with oral micronized griseofulvin.

This study highlights the use of dermatoscopy as a valuable tool for diagnosing and monitoring alopecia areata, noting that specific hair shaft alterations such as exclamation-mark hairs and black dots are indicators of active disease, while vellus hairs signal early regrowth.

In this study, among 800 Pakistani patients with Alopecia Areata, the most common location for hair loss was the scalp (89.9%), with significant associations between age and various dermoscopic features like black dots and exclamation mark hairs.

In this study, both fractional carbon dioxide laser therapy and cryotherapy were found to be effective and safe for treating patchy alopecia areata, showing similar efficacy in improving hair growth compared to untreated control patches.

In this study, trichoscopy was identified as a valuable diagnostic tool for alopecia areata, revealing that specific hair features like yellow dots and short vellus hairs help assess disease activity and phase, with diagnosis relying on multiple combined signs rather than a single indicator.

This study found that line-field confocal optical coherence tomography correlates well with histopathological and dermoscopic findings in alopecia areata, suggesting it could be a useful diagnostic and monitoring tool for the condition.

In this study, 45 patients with advanced basal cell carcinoma treated with the medication sonidegib experienced a 24% incidence of alopecia, with detailed trichoscopic and LC-OCT examination revealing specific hair changes, suggesting LC-OCT might help identify early signs of alopecia from sonidegib use.

This study highlights the complexity of diagnosing scalp fungal infections, emphasizing how clinical evaluation, trichoscopy, and cultural samples are essential in distinguishing tinea capitis from similar conditions like piedra, seborrheic dermatitis, and psoriasis, due to overlapping symptoms like scaling and hair changes.

This study found that baricitinib significantly reduced hair loss in patients with severe alopecia areata, decreasing the mean SALT score from 96.6 to 48 over 24 weeks, with no patients dropping out and only mild adverse events in 12.7% of participants.

In this study of alopecia areata patients, researchers reported that nail changes are significantly associated with severe disease, and dermoscopic analysis revealed a notable correlation between yellow dots and increased disease severity, with the condition primarily affecting young adults and more common in males.

In this study, researchers observed that among pediatric alopecia areata patients at Dr. M. Djamil General Hospital Padang, patchy alopecia was most common, affecting 80% of cases, with frequent trichoscopic features including yellow dots, black dots, and broken hairs.

This study found that trichoscopic examination can effectively differentiate between alopecia areata and trichotillomania, as specific features such as black dots and exclamation marks favor alopecia areata while hair breaking at various lengths and several unique patterns are exclusive to trichotillomania.

In this study, researchers used trichoscopy to establish standardized findings for normal hair and scalp characteristics in 360 healthy males, noting significant age-related differences in hair diameter variability and identifying potential pathological indicators like colored dots and scarring not present in healthy individuals.

This study found that videodermoscopy is a promising non-invasive tool for distinguishing between types of non-scarring alopecia on the scalp, highlighting its potential in dermatological practice.

This case report discusses a new onset of alopecia areata following reinfection with COVID-19, suggesting a potential link between COVID-19 infection and this hair loss condition.