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This article reviews different generations of synthetic retinoids for dermatological use, discussing their efficacy and significant side effects, but reports no new clinical results.

This report describes an unusual case of proliferating trichilemmal cyst with trichoepitheliomatous change in a young woman, differing from its typical presentation in elderly women.

This study found a significantly higher density of Demodex mites in sebaceous hyperplasia lesions compared to controls, suggesting a possible link between Demodex and the development of these skin lesions.

This review discusses the cell biological characteristics of the outer root sheath of normal human hair follicles and highlights some similarities and differences with trichilemmal tumors, but reports no new results.

This study found that skin sulfhydryl oxidase plays a role in keratinization and may contribute to skin's protective functions, with its expression influenced by irritants and differentiation modifiers.

This study suggests that human hair follicle cells and epidermal keratinocytes differ in their degree of keratinization and other characteristics when cultured on mixed collagen membranes.

Retinoids are important for treating skin conditions but should be used with caution due to serious side effects and risks during pregnancy.

This study details the presence of two types of cysts in rhino mouse skin, with utricles derived from hair canals and deeper cysts from hair root sheath epithelium.

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

This study found that acne lesion formation involves early hyperkeratinization and inflammation around hair follicles, creating a self-sustaining cycle that may progressively worsen acne.

This review discusses the controversial non-inflammatory alopecia known as alopecia X, highlighting its unknown etiology and the variable effectiveness of various proposed treatments, but reports no new results.

This study reported that antimicrobial and topical retinoid therapies led to significant changes in the lipid profiles of sebaceous follicular infundibulum, with increased triglycerides and ceramide subfractions observed.

In this study, researchers observed that loose anagen hair syndrome is an autosomal dominant disorder characterized by abnormal hair follicle structure and premature keratinization, possibly due to signaling and desmosomal component disturbances.

This study found that KRTAP2 proteins predominantly express in the hair shaft cortex of humans, interact with hair keratins, and play crucial roles in hair shaft keratinization.

Disulfide bonds are crucial for hair structure during keratinization.

This study suggests that pilomatricoma can differentiate towards various hair follicle structures, including hair matrix, hair cortex, follicular infundibulum, outer root sheath, and hair bulge.

This article discusses the multifactorial etiopathogenesis of acne vulgaris, highlighting the roles of sebum production, keratosis, bacterial development, and inflammatory mediators, but reports no new clinical results.

This case study and literature review describe eruptive vellus hair cysts as uncommon, potentially inherited or acquired lesions, associated with other skin conditions, and challenging to treat despite being benign.

This study found that 5α–reductase activity is higher in infrainfundibular keratinocytes compared to interfollicular epidermal keratinocytes, suggesting a potential role in acne-related follicular changes.

This letter to the editor discusses an observed case of hair repigmentation linked with etretinate therapy but reports no new research findings.

This study examined the expression patterns of various cytokeratins in the outer root sheath of human anagen hair follicles, noting distinct differentiation patterns and localization of keratin markers.

This case report describes an 89-year-old woman with a recurrent benign proliferating trichilemmal tumor on her back, highlighting its misdiagnosis as a sebaceous cyst and successful excision with free margins.

This review discusses the role of zinc and its transporters in skin health and disorders, providing an overview without presenting new clinical results.

This study found that glycolic acid treatment reduced oxidative stress and inflammation in UV-induced skin photoaging in rats, promoting collagen recovery and reducing photoaging signs, potentially by inhibiting the PI3K/Akt and NF-κB pathways.

This article discusses promising therapies for perifolliculitis capitis abscedens et suffodiens and reports no new clinical results; management includes isotretinoin and other medications targeting its underlying causes.

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 book reviews the various types of acne and acneiform conditions, as well as their treatment options, with expert insights from multiple fields.

This case report describes a treatment approach for frontal and temporal alopecia using oral dutasteride, minoxidil lotion, and triamcinolone injections, with hyaluronic acid successfully treating injection site atrophy.

This study suggests that immunohistochemistry of keratin and involucrin expression can aid in distinguishing malignant trichilemmoma from other tumors previously diagnosed as such.

This case report details a rare instance of malignant proliferating trichilemmal tumour in a 60-year-old male, emphasizing the significance of histochemical and immunohistochemical markers for accurate diagnosis and differentiation from squamous cell carcinoma.