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This study reported that imaging characteristics of sebaceous nevus vary significantly by age group, revealing dynamic developmental changes that can be effectively identified through dermoscopy and reflectance confocal microscopy, offering noninvasive diagnostic potential.

This study found that sphynx cats exhibit hair follicle dysplasia with abnormal hair shaft production, but without a reduction in the number of follicles, similar to murine KRT 71 mutants.

Results are not reported in this abstract, which describes a man in his 30s with a 4-year history of patchy hair loss on the right lower leg and associated itching, highlighting the use of dermoscopy in his examination.

This study found that elastic fibre arrangements in the skin of domesticated mammals vary with hair density, with densely-haired species having horizontal fibres and sparsely-haired ones exhibiting a sponge-like system.

This study found that while ethnic hair types share a common fibrous keratin structure, variations in keratin-associated proteins and lipids may lead to different macroscopic hair characteristics.

Trichorrhexis nodosa causes hair to break easily, often affecting young to middle-aged black women.

This study suggests that pili annulati is likely more common than traditionally thought, highlighting the importance of recognizing its characteristic clinical and trichoscopic features for accurate diagnosis.

This report presents four new cases of follicular porokeratosis, which exhibit distinct histological features where the cornoid lamella are confined to the follicular ostia.

In this study, researchers observed significant variations in the hierarchical structures of domestic cat hairs and whiskers, showing that local mechanical properties are influenced by the distribution and composition of internal granules and calcium enrichment along the hair's length.

Hair transplant complications were likely due to deep graft placement and rough handling.

In this study, researchers found that the morphology, composition, and elemental enrichment of domestic cat hairs vary significantly along their length, contributing to a functional gradient that affects mechanical properties and challenging assumptions of uniformity in hair structure.

This article presents five family cases of monilethrix and reports that neither vitamins nor desquamative ointments are effective treatments, although symptoms may spontaneously regress over time.

This study observed that the mechanical connection between hair follicles and connective tissue in human fetal scalp skin is weaker than in the corresponding skin components, reflecting dynamic processes in hair growth.

Human hair's structure makes it tough and resistant to breaking.

This study reported that X-ray microscopy provides more intact images of hair's internal structure compared to transmission electron microscopy, particularly for observing fine details like cuticle coarsening and cortex cracks.

This study used advanced analytical techniques to reveal that proteins and lipids are distributed unevenly in hair, with distinct structural differences depending on their location within the fiber.

This review discusses the use of trichoscopy for diagnosing mimickers of patterned hair loss and assessing donor sites before hair transplant surgery, and reports no new clinical results.

This study discovered previously unknown structures in human hair shafts that may stabilize hair structurally and physicochemically.

This study found that the structural and chemical composition of human curly hair may resemble that of sheep wool, implying a shared characteristic among mammals with wavy hair.

This review highlights the light microscopic features of various infectious and non-infectious hair conditions and reports no new clinical results.

This article reports no new clinical findings but discusses two rare dermatological conditions, trichostasis spinulosa and eruptive vellus hair cysts, and their simultaneous occurrence.

This report describes a 15-year-old male with widespread papules due to middermal epithelial cysts containing vellus hairs, also observed in his brother and father.

This study suggests that spiny keratoderma may be an ectopic hair formation on palms and soles, based on keratinization patterns observed using antikeratin antibodies and electron microscopy.

This study identified several specific trichoscopic features of trichotillomania, with trichoptilosis, V hair, and hair powder being the most frequent findings.

This report describes the diagnosis and treatment of traumatic anserine folliculosis in children, highlighting its distinct skin features and suggesting tretinoin cream as an effective remedy.

This article describes cases of unusual scalp whorl patterns, including triple parietal and right temporal whorls, that were associated with normal development, and discusses theories of hair whorl development.

Mutations in the TSPEAR gene cause a new form of ectodermal dysplasia affecting hair and tooth development.

Hair from people with seborrheic dermatitis is thicker scaled, more damaged, and thinner than healthy hair, and atomic force microscopy can help monitor the condition.

In this study, researchers found that changes in the extracellular matrix components, particularly fibronectin, laminin, and type IV collagen, during the rat vibrissa follicle growth cycle, suggest dynamic remodeling related to dermal-epidermal signaling.

This study explores torsional measurements of single hair fibers to differentiate the effects of cosmetic treatments on hair structure, highlighting their potential to reveal shear stiffness changes related to cuticle damage.