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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.

This study observed that trichoscopic patterns, such as yellow dots and honey comb patterns, correlate with the severity of androgenetic alopecia in Indian patients, highlighting trichoscopy's diagnostic and prognostic value.

This meta-analysis suggests that any pattern of male baldness may be associated with a decreased risk of testicular cancer, with stage II hair loss providing the strongest protective effect.

This article describes cases of unusual scalp whorl patterns, including triple parietal and right temporal whorls, that were associated with normal development, and discusses theories of hair whorl development.

This study found that certain trichoscopic patterns, like exclamation mark hairs, were associated with active or mild alopecia areata in Turkish patients, aiding in diagnosis and prediction of the disease.

This case report highlights an unusual trichoscopic appearance in alopecia areata due to dithranol staining, which may obscure typical patterns and reveal atypical vascular features in the interfollicular spaces.

This report describes a case of fibrosing alopecia in a pattern distribution in a postmenopausal woman, highlighting its distinction from other forms of lichen planopilaris and pattern hair loss.

This study observed that the keratinization pattern of trichilemmal cysts in two Japanese women may originate from the proliferation of the outer root sheath in the follicular isthmus of anagen hairs.

This report discusses a case of pediatric trichotillomania, detailing its clinical presentation and distinguishing histopathological characteristics, ultimately diagnosing the condition in a 7-year-old boy with nonscarring alopecia.

This study identified specific trichoscopic features in patients with androgenetic alopecia and telogen effluvium, highlighting differences in hair shaft diameter variation between fronto-temporal and occipital areas.

Mouse tail skin has different keratinization near hair follicles and scales.

This review reports no new clinical results but discusses fibrosing alopecia in a pattern distribution as a distinct scarring alopecia with characteristics of both androgenetic alopecia and lichen planopilaris.

This case report highlights a rare association between congenital triangular alopecia and vitiligo, noting that treatment with tofacitinib improved the patient's vitiligo but not the alopecia.

This study on feather pattern formation in chicken skin found that inhibiting gap junctional intercellular communication can lead to the emergence of new feather buds in specific spatial patterns, suggesting that GJIC may facilitate Turing-type periodic patterning by propagating inhibitory signals over long distances.

This study observed that male and female androgenetic alopecia share similar trichoscopic characteristics, such as hair shaft thickness heterogeneity and increased thin and vellus hairs.

This review discusses the use of trichoscopy for diagnosing alopecia and reports no new clinical results, emphasizing its role in identifying vascular and follicular features.

This study reports distinctive clinical, trichoscopic, and histopathological features of fibrosing alopecia in a pattern distribution among Chinese patients, suggesting possible racial differences compared to previous studies primarily involving Caucasians.

In this retrospective study, researchers identified a previously undetected pattern of hair regrowth resembling androgenetic alopecia in 13 of the 1604 alopecia areata cases examined.

In this study, researchers found that human fingerprint ridges are formed through a modified hair follicle developmental process and spatial patterns influenced by specific signaling pathways.

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.

In this study, researchers found that hair alterations such as frontal-occipital inversion in males and a high occipital hairline may aid in diagnosing the uncommon condition TRPS.

In this study, researchers described cases of traction alopecia in young Sikh boys due to hair tying practices, emphasizing the importance of early intervention and education to prevent progression and support hair regrowth, using strategies like changing hair tying methods and topical treatments when appropriate.

This article discusses distinguishing features of Diffuse Alopecia Areata and Fibrosing Alopecia in a Pattern Distribution, but reports no new clinical results.

This article explains that proliferating trichilemmal tumors, originating in the hair follicle, can exhibit low-grade malignant potential, and recommends wide excision to minimize recurrence risk, but reports no new clinical findings.

In this study, the authors concluded that the TS-associated polyomavirus may disrupt Wnt/β-catenin signaling, likely contributing to abnormal hair follicle formation in trichodysplasia spinulosa.

Ludwig pattern hair loss results from varying androgen sensitivity, causing fewer thick hairs and more thin hairs.

This report describes a rare case of nonscarring alopecia linked to a tick bite on a 21-year-old male's scalp, with specific histological findings and proposed mechanisms.

This study found that a family history of androgenetic alopecia and specific trichoscopic signs are strong predictors of female pattern hair loss, leading to a nomogram model for risk prediction.

This study observed that trichoscopy can identify specific patterns in alopecia areata, such as white and black dots, which assists in non-invasive diagnosis and assessing disease severity.

This study reported that the coat hairs of golden takin, living in harsh environments, have unique structural features compared to cattle, with overcoat hairs having continuous medullated tissue and undercoat hairs being finely crimped, potentially contributing to temperature regulation in cold conditions.