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This study suggests that hair follicles may be the primary target in the onset of various skin diseases, potentially spreading to affect the surrounding epidermis.

Keratosis Pilaris Atrophicans causes skin scarring and might be treated with a new synthetic retinoid.

This case report documents the first known instance of erythromelanosis follicularis faciei in a Saudi male, detailing its clinical and histopathological characteristics.

This case report describes an atypical presentation of lichen planopilaris affecting only facial vellus hair, without scalp involvement, in a 46-year-old man.

This review summarizes the anatomy and physiology of the arrector pili muscle and discusses its potential role in hair loss disorders, reporting no new clinical results.

This study demonstrates that sebaceous gland loss is a common early feature in primary scarring alopecia and suggests that inflammation of sebaceous glands or ducts may contribute to follicular damage.

This review discusses "follicular hypoglycania" as a potential pathology in hair growth disorders and reports that proteoglycan replacement therapy may improve hair loss treatments, though it presents no new clinical trial results.

This study suggests genetic and clinical heterogeneity in keratosis pilaris atrophicans, with variations in inheritance patterns, severity, and response to treatment among 21 individuals observed.

This study found that the expressions of CDK inhibitors p21waf1/cip1 and p27kip1 were higher during the anagen phase compared to telogen, suggesting a role in follicular epithelial cell differentiation.

In this retrospective study, researchers described the dermoscopic features of dermatitis cruris pustulosa et atrophicans in 30 patients, finding that follicular-based pustules and other specific features were predominant, with male patients being more affected and primarily involving the lower extremities.

This article discusses various disorders of the hair erector muscle, compiling conditions that involve it passively or actively, but reports no new clinical findings.

This study concluded that combining vertical and transverse sections of scalp biopsy specimens improves diagnostic yield for certain hair disorders without increasing costs.

This study reported that alopecia occurred in 2.5% of patients with mycosis fungoides or Sézary syndrome, with some cases resembling alopecia areata and others associated with specific skin lesions.

This study describes a newly observed "inflammatory vellus involvement" pattern in early frontal fibrosing alopecia, which may lead to misdiagnosis due to the absence of typical histological features.

This case report highlights the diagnostic challenges of distinguishing folliculotropic mycosis fungoides from alopecia areata and lichen planopilaris, emphasizing the importance of histopathological evaluation for accurate diagnosis and treatment.

More research is needed to understand and treat cicatricial alopecias.

In this study, type I interferon response-related genes activated by RIG-1 and IL-17 signaling pathways were significantly up-regulated in both hair follicles and skin tissues affected by chronic discoidal lupus erythematosus.

This study found that type I interferon response-related genes activated by RIG-1 and IL-17 pathways were significantly up-regulated in hair follicle and skin samples with chronic discoidal lupus erythematosus.

This study reports that some patients with androgenetic alopecia may also exhibit clinical and histological features of inflammation and fibrosis, similar to those found in lichen planopilaris.

This review discusses recent findings on the mechanisms driving bullous pemphigoid, highlighting epitope spreading and the roles of regulatory T cells, and reports no new experimental results.

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.

This review discusses hair restoration procedures for transgender patients undergoing gender transformation surgery and describes the authors' surgical approach but reports no clinical outcomes.

In this study, researchers found that human ovaries at different life stages biosynthesize both canonical and non-canonical steroid hormones, with fetal ovaries showing higher enzyme activity related to estradiol and testosterone conversion compared to adult tissues.

This review discusses the enigmatic nature of frontal fibrosing alopecia and reports no clinical results; the authors stress the need for further research.

This review discusses cases of ringworm of the scalp, highlighting the potential for spontaneous cure when the infection is caused by an organism pathogenic to animals, and reports no new clinical results.

This study suggests that dysfunctions and altered expression of aquaporins may play a role in PCOS-related disorders, potentially impacting folliculogenesis and integrating with the insulin-dependent hypothesis of PCOS pathogenesis.

In this study conducted at a tertiary dermatological clinic, researchers identified and described the clinical, dermoscopic, and histopathological features of preclinical folliculitis keloidalis, including novel dermoscopic findings such as perifollicular scale, which was associated with fibrosis.

This article reviews possible pathogenesis scenarios for hidradenitis suppurativa and emphasizes the need for focused research on the innate immune system of hair follicles to better understand the disease.

In this study, researchers used an integrated in silico approach to demonstrate that Polygonum multiflorum combats androgenetic alopecia via anthraquinone emodin, which targets PI3K catalytic subunits differently from traditional antiandrogenic treatments, showing potential as a novel therapeutic strategy.

This research found that deleting the SLC3A2 gene in hair follicle stem cells disrupts their maintenance and proper differentiation, leading to hair follicle growth defects and altered skin regeneration through a YAP/Taz-dependent pathway.