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This case report describes a pilomatricoma in a 21-year-old woman, highlighting the diagnostic process and illustrating the potential for intraoral surgical access to minimize scarring.

In this case report, a 7-year-old girl developed a painless, slowly growing keratinous cyst at her umbilicus, which was successfully resected and identified as a benign skin lesion; the authors emphasized the importance for clinicians to consider this diagnosis in pediatric umbilical tumors.

In this case report, a 57-year-old man with chronic myelogenous leukemia developed a large, rapidly growing giant keratoacanthoma, highlighting the diagnostic challenges it poses compared to cutaneous squamous cell carcinoma, with surgical excision identified as the preferred treatment.

This study found that keratoacanthoma of the lip likely arises from outer root sheath cells, based on the presence of specific keratin markers and periodic acid-Schiff staining patterns.

This case report describes a proliferating trichilemmal cyst that underwent malignant transformation, with specific keratins identified in the tumor but no epidermal keratin detected.

In this study, pilomatricoma, a benign skin tumor from hair follicle matrix cells, is highlighted as an important consideration when diagnosing painless, firm subcutaneous nodules, with accurate diagnosis relying on histopathological examination.

This report highlights four cases where squamous cell carcinoma was misdiagnosed in individuals with darker skin, emphasizing the challenges in accurate diagnosis for this population.

This case report describes a 26-year-old male patient with trichofolliculoma, highlighting dermoscopic features that aid its diagnosis and distinct characteristics from other similar lesions.

This study indicates that nail-matrical fibroblasts can induce hard keratin expression in non-nail-matrical keratinocytes, suggesting potential for using non-nail-matrical epidermal grafts to treat nail injuries.

This case report describes a 9-year-old Korean boy with a calcified nodule on his earlobe, confirmed by histopathologic examination and Von Kossa staining.

This study presented cases of severe and permanent nail changes resembling lichen planus in patients with chilblain lupus erythematosus, suggesting a unique pattern related to cold exposure rather than typical histopathology findings.

This report describes a rare case of porokeratotic eccrine ostial and dermal duct nevus in a 64-year-old woman, successfully treated with CO₂ laser, highlighting its potential occurrence in older adults.

This study found that keratin 15 expressing cells from the hair follicle contribute to the development and long-term persistence of cutaneous papillomas in transgenic mice, with a subset showing the Ha-ras mutation.

This study identified distinct gene expression programs in keratinocytes responsible for forming hard scales and soft interscale epidermis in chickens, revealing conserved differentiation genes similar to those in human skin.

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

Tacalcitol ointment effectively improves bilateral nevus comedonicus.

In this study, researchers identified slow cycling label retaining cells in nail and sweat gland appendages, showing stem cell characteristics similar to hair follicles but with distinct features.

This case series highlighted three pediatric patients with congenital nail anomalies, revealing underlying developmental or genetic issues such as symbrachydactyly and potential Adams–Oliver syndrome, underscoring the critical role of dermatologists in early detection and diagnosis of these conditions.

This review examines the use of cultured epithelial autografts (CEA) in burn treatment, highlighting their potential and technical challenges, but reports no new clinical results.

This case report describes a 5-year-old boy with extensive epidermal nevus who experienced marked improvement using a topical calcipotriol/betamethasone dipropionate combination ointment.

This case report describes the occurrence of a very rare disease, MTPC, in the elbow of a man who does not match the typical etiology, highlighting its academic significance.

This study concludes that tiny infundibular cysts, rather than comedones, are the primary lesions in chloracne.

Chronic scalp inflammation can turn into cancer, so regular check-ups are important.

A man had a non-cancerous, fast-growing skin lump on his arm that was removed with surgery.

This study found that activating BMP signaling in rodent and primate models significantly promotes nail and digit regeneration after amputation by enhancing the role of specific nail stem cells, though extreme proximal amputation only permitted partial regeneration without bone reconstruction.

This case report describes successful CO2 ablation treatment of porokeratotic adnexal ostial nevus in an 8-year-old boy, with marked improvement over a 12-year follow-up.

This study introduced a volar skin excisional wound model that closely mirrors human wound healing and supports evaluation of skin regeneration with multiple appendages and innervation.