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The study concluded that a 'Swiss cheese' pattern in hair follicles is a useful sign for diagnosing alopecia areata.

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 review discusses the role of dermoscopy in diagnosing hair and scalp disorders, noting its ability to aid in differential diagnosis without the need for biopsies; it reports no new clinical results.

Isolated patchy heterochromia with pili annulati can occur without other health issues.

This study found that trichoscopy, a non-invasive diagnostic method, may effectively differentiate between types of focal alopecia in the parietal area in adult women, indicating specific trichoscopic features for conditions like alopecia areata, discoid lupus erythematosus, and lichen planopilaris.

This review discusses fibrosing alopecia in a pattern distribution and highlights diagnostic features, but reports no new clinical results; the authors emphasize the value of trichoscopy and histology in diagnosis.

This case study describes a rare cutaneous follicular hybrid cyst intimately associated with syringocystadenoma papilliferum, proposing a potential relationship with the infrainfundibulum based on keratin expression.

This case report describes how trichoscopy helped diagnose tinea capitis disguised as female pattern hair loss in cases of endothrix infection, highlighting its usefulness in avoiding misdiagnosis.

In this study of folliculitis decalvans, researchers found that compound follicular structures in scalp biopsies are primarily composed of terminal anagen follicles, surrounded by fibrosis and inflammatory cell infiltrate, which could enhance understanding of this condition.

This study reported that in men with androgenic alopecia, a distinct subclinical hyperpigmentation pattern was observed in the scalp, associated with baldness severity and possibly linked to local melanin production by pilosebaceous units.

This study identified five distinct scalp whorl patterns, noting that white males have the most distinct whorls, while African Americans and women more often exhibit a diffusion pattern.

Dermoscopy can help diagnose tinea capitis in children by looking for comma hairs, black dots, and broken hairs with white bands.

Trichoscopy is effective in diagnosing trichotillomania by showing specific hair patterns.

In this study, FAPD was characterized in a Chinese population by perifollicular mast cell infiltration, suggesting young individuals may be at higher risk than previously thought.

This study found that, among 100 patients with alopecia areata, the most prevalent subtype was patchy alopecia areata, with characteristic trichoscopic features including black dots, yellow dots, and empty hair follicles.

This study found that a peripilar white gray halo around hair emergence is a highly specific and sensitive dermatoscopic feature for diagnosing central centrifugal cicatricial alopecia in African American patients with mild central thinning.

This article reviews the use of trichoscopy for diagnosing common hair and scalp diseases and introduces a new classification for specific skin surface abnormalities, without presenting new clinical results.

This study identified five distinct natural scalp whorl patterns and noted that White males have more distinct whorls, whereas African Americans and women often display a diffusion pattern.

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.

This systematic review evaluated 60 studies on trichoscopy in hair and scalp disorders, revealing gaps in accounting for variables like disease stage or hair texture, and underscoring a need for more comprehensive analyses to fully understand trichoscopic patterns.

This report found follicular red dots in patients with scalp pigmentary disorders, suggesting they might be linked to the scalp's vascular structure and may have implications for conditions like discoid lupus erythematosus.

This study reported that in women with pattern baldness, hormonal levels and iron deficiency were significantly associated with the condition, but trichoscopic findings were similar across different forms of female pattern hair loss.

This abstract presents supplementary materials illustrating trichoscopy in alopecia areata and scarring alopecia using different dermoscopy techniques but reports no clinical findings.

This review examines the use of dermoscopy for diagnosing common hair disorders and highlights its importance, but it does not report new clinical results.

This study reports pseudopili annulati in a dark-haired Chinese girl, identifying the unique appearance and structural characteristics of her hair without finding abnormalities in the cuticle and cortex.

This study found that horizontal sections of scalp biopsies in patients with Central Centrifugal Cicatricial Alopecia often reveal follicular miniaturization, inflammation, and scarring, which can guide personalized treatment.

This study compared the diagnostic effectiveness of Folliscope and Trichoscope in 100 men with androgenetic alopecia, concluding that using both methods enhances diagnostic accuracy by providing complementary insights—Trichoscope highlights patterns while Folliscope offers objective measurements.

In this study, trichoscopy consistently identified typical findings of frontal fibrosing alopecia, revealing three unusual clinical patterns in 18.4% of patients, which may aid in the differential diagnosis when clinical presentations are atypical.

A new computer tool quickly measures hair thickness differences in people with common types of hair loss.