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This chapter reviews disorders of skin appendages including miliaria, acne, and alopecia, providing guidance on management and treatment but does not present new clinical findings.

In this study, the authors reported that in rat skin affected by localized calciphylaxis, although regeneration occurs and some connective tissue remains, the regenerate resembles scar tissue with reduced hair presence and lacks restored elastic fibers.

This study found that children with COVID-19 experienced more frequent acral ischemic lesions, whereas telogen effluvium was the most common skin manifestation in adults.

This article reviews naevus comedonicus, highlighting potential treatments like retinoic acid application and surgical intervention, but reports no new clinical findings.

This study underscores the importance of using trichoscopy and histopathology for the differential diagnosis of primary neutrophilic cicatricial alopecias to facilitate early intervention and prevent cicatricial alopecia progression.

This report discusses two cases of sarcoidosis with cutaneous manifestations that posed a diagnostic challenge, without presenting new clinical results.

This study found that hoof progenitor cells from fresh equine tissue have multilineage differentiation capabilities, offering insights for future progenitor cell-based hoof and dermal-epidermal tissue engineering.

Hair shaft changes may be linked to CCCA, but their role is unclear.

This report describes a case of scarring alopecia in a 7-year-old girl, highlighting the presence of inflammation without true sclerosis despite normal bone age and negative fungal tests.

This report discusses two cases of porokeratotic eccrine ostial and dermal duct nevus and porokeratotic eccrine and hair follicle nevus, suggesting they may represent a single clinical entity, but reports no therapeutic outcomes.

This case report details atrichia with papular lesions in a 4-year-old girl, highlighting specific histological findings on her scalp and other affected areas.

In this study, the researchers reported that calcipotriol pre-treatment made photodynamic therapy more effective and safe than conventional treatment for actinic keratosis on the scalp, improving long-term clearance rates, especially for Grade II lesions. However, they suggested larger trials are necessary to corroborate these findings.

This case report describes a rare instance of localized scleroderma in a cat, noting that despite treatment, the lesions remained unchanged, and the cause of pruritus was undetermined.

This case report describes a 9-year-old boy with atypical alopecic and aseptic nodules of the scalp, suggesting possible inclusion within the spectrum of typical AANS and DCS due to its prepubertal onset and facial involvement.

Norfolk Terriers have a genetic skin defect causing scaling and blisters due to a keratin issue.

This chapter provides an overview of terminology for various skin lesions, including primary and secondary types, but does not report new findings or results.

This review examines the histological features of keloid disease, its differentiation from similar skin conditions, and emphasizes gaps in current research while reporting no new clinical findings.

This case report describes a man with Touraine-Solente-Golé syndrome who achieved substantial improvement of tufted hair folliculitis after treatment with amoxicillin, clavulanic acid, and topical nadifloxacin.

This case report describes the histopathological features of nevus psiloliparus in an 11-year-old girl, noting "shadow" follicular units with loosely arranged collagen and reduced elastic fibers.

This case report describes a patient with sarcoidosis who experienced severe symptomatic hypercalcemia, scarring alopecia, and acute-on-chronic kidney failure.

This chapter reviews various fungal skin diseases affecting cattle but does not report new research findings; it focuses on rare, inherited, and congenital conditions like follicular dysplasia and cutaneous asthenia.

In this case report, a benign trichoadenoma was identified in a 42-year-old man as a skin-colored nodule on the cheek, with histopathology confirming the diagnosis and differentiating it from similar conditions like pilomatricoma and sebaceous cyst.

This case report identifies a new type of hair matrix tumor called "rippled pattern trichomatricoma," distinguished by its unique cell arrangement and differentiation features.

This chapter reviews various types of alopecia and associated skin diseases in dogs and cats but presents no new clinical findings.

This study demonstrated radiocalcium uptake in skin, eye, cartilage, and mucous glands, with the highest concentration in the hair follicle's keratogenous zone.

This case report describes a young man diagnosed with encephalocraniocutaneous lipomatosis who had unique bilateral optic disc colobomas, a previously unreported association with this syndrome.

In this review, researchers examined the molecular diversity and expression patterns of major skin appendage proteins, like keratins and EDC proteins, in tetrapods, highlighting recent findings in reptiles and birds and identifying knowledge gaps for future research.

The girl's "dandruff" was actually harmless hair casts, not a hygiene issue.

This case study reports a new variant of chronic dermatophytosis with giant cutaneous horns, suggesting a possible genetic link and highlighting successful treatment with antifungal medications.