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It's important to tell the difference between hair casts, pseudocasts, and nits.

In this study, sweat duct differentiation was found to be a rare feature in trichilemmal cysts, occurring in only 0.97% of cases, and was likely under recognized.

In this study, oral acitretin therapy for psoriasis was associated with excess granulation tissue in the nail sulcus and noncicatricial universal alopecia.

This study found that topical tacalcitol improved roughness and scaling in erythromelanosis follicularis faciei et colli, although it was less effective for facial erythema.

Two patients had a rare combination of red skin spots and white scaly skin lesions not on the genitals.

This study identified Sciellin, a new protein precursor to the cornified envelope in keratinocytes, with unique solubility properties hinting at its potential role in envelope assembly.

This research suggests that hair keratins evolved from claw keratins in a hairless ancestor, with Hoxc13 controlling their expression in tetrapods, evidenced by the knockout of Hoxc13 hindering claw formation in Xenopus tropicalis frogs.

This review discusses the genetic and environmental factors involved in the development of skin cancers like squamous cell carcinoma, basal cell carcinoma, and melanoma, but does not report new clinical findings.

This case report highlights a 12-year-old boy with twenty nail dystrophy in isolation, emphasizing the need for thorough physical exams to distinguish nail disorders and provide appropriate management and counseling on the condition's benign nature and good prognosis.

This study presented an elderly male with a nodular lesion diagnosed as pilomatricoma and discussed the value of diagnostic tools like dermoscopy and high-frequency ultrasonography, encouraging clinicians to consider pilomatricoma in differential diagnoses of nodular lesions across all ages.

In this study, the researchers found that vitamin D and calcium signaling in keratinocytes are essential for normal skin regeneration after wounding, with deficiencies significantly delaying wound closure and re-epithelialization in mice.

This study found that reduced cell cohesiveness in eccrine sweat gland outgrowths contributed to delayed wound healing in elderly skin compared to younger skin.

In this case report, researchers observed multiple trichofolliculomas in family members, noting this as a rare manifestation of typically singular hair follicle hamartomas.

This study developed protocols to create skin organoids with hair follicles and other appendages from human induced pluripotent stem cells, representing a significant step towards understanding hair follicle development and potential applications in modeling skin diseases and reconstructive surgeries.

The researchers recommend considering porokeratosis as a possible diagnosis for scalp lesions since accurate identification is crucial for management and new treatments like topical cholesterol/lovastatin show promising potential for treating porokeratosis.

This case report described a facial hairline tumor initially diagnosed as a sebaceous cyst but ultimately confirmed as a rare Proliferating Pilar Tumor with focal malignancies upon histopathological examination.

This article discusses the classification and characteristics of infundibular squamous cell carcinoma and highlights the ongoing debate about its differentiation from other carcinoma types, reporting no new clinical results.

This study described a Scottish family with hidrotic ectodermal dysplasia featuring variable symptoms such as hypo/oligodontia, thin hair, and heat tolerance, and concluded they exhibited overlapping traits with Clouston syndrome.

This study reports that in systemic sclerosis, CD34+ dermal fibroblasts transition to CD34−, podoplanin+, and CD90+ fibroblasts across the dermis, suggesting a role in unchecked fibrosis.

This study found that grafting an autologous cultured epithelial sheet improved both scarring and skin texture in four patients with acne-associated scar contracture three months post-treatment, suggesting the technique might effectively treat difficult acne scars by metabolizing excess collagen.

Drug addicts often have scars, skin color changes, blocked veins, and bruising, with severe ulcers from barbiturate injections.

This study reported that administering salicylates to wounds in adult mice promoted wound healing patterns similar to embryonic wounds, enabling complete wound regeneration and reduced scarring by activating AMPK and subsequent signaling pathways.

This case report suggests that human dermal papillae conditioned media may accelerate wound healing in congenital aplasia cutis due to varicella infection.

This report presents two cases where dermatologists identified internal malignancies—small cell lung cancer and stage IIB cervical cancer—through paraneoplastic skin manifestations.

This book reviews actinic keratosis from a multidisciplinary perspective, covering topics such as epidemiology, immunology, and clinical manifestations, but reports no new research results.

This article compiles various methods and models for studying keratinocytes, epidermal stem cells, and differentiation processes, but it reports no new research findings.

This study suggests that basal cell carcinoma and trichoblastoma may share differentiation toward the hair follicle, as indicated by strong positivity in CK 15, follistatin, and Bmi‐1 markers.

This study found that reconstructed human epidermis from infant skin is more susceptible to UV damage than that from older children, with notable changes in skin cell characteristics during the early years of life.

This review reports two new cases of porokeratotic eccrine and hair follicle nevus and analyzes all known cases in the Spanish and English literature, suggesting a link to a GJB2 gene mutation.