research Pili Annulati
The patient's hair has unique structural differences with alternating bright and dark bands.
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90-120 / 1000+ resultsresearch Ultrastructural Resemblance of Basal Cell Epithelioma to Primary Epithelial Germ
Basal cell epithelioma resembles fetal hair follicles, not adult or fetal skin.
research [Contribution to hair medulla study (author's transl)].
Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
research Engineering Human Skin with Spatially Defined Hair Peg-Like Structures Using Self-Organizing Composite Organoids and Micropatterned Dermal Scaffolds
research Nevus psiloliparus: Newly described histopathological features from transverse sections
Nevus psiloliparus lacks mature hair follicles but keeps other skin structures intact.
research Characteristic intraepidermal nerve fibre endings of the intervibrissal fur in the mystacial pad of the rat: morphological details revealed by intravital methylene blue staining and the zinc iodide‐osmium tetroxide technique
Methylene blue staining effectively reveals detailed nerve structures in rat snouts.
research AN ULTRASTRUCTURAL POSTNATAL DEVELOPMENTAL STUDY OF THE INTEGUMENT OF THE PIG (SUS SCROFA)
Pig skin is similar to human skin, with no major changes as they age.
research Shaping Up Mitochondrion in Motion
Mitochondria change shape to meet energy needs during cell movement.
research Characteristic intraepidermal nerve fibre endings of the intervibrissal fur in the mystacial pad of the rat: morphological details revealed by intravital methylene blue staining and the zinc iodide-osmium tetroxide technique
Methylene blue staining effectively highlights detailed nerve structures in rat fur.
research Multiple desmoplastic trichoepitheliomas with ossification and cholesterol deposition
A man had rare skin tumors with bone formation and cholesterol deposits.
research Epithelial skirt and bulge of human facial vellus hair follicles and and associated Merkel cell-nerve complex
Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
research Outer root sheath (ORS) cells organize into epidermoid cyst-like spheroids when cultured inside Matrigel: a light-microscopic and immunohistological comparison between human ORS cells and interfollicular keratinocytes
research Pseudopili Annulati in a Dark‐Haired Individual: A Light and Electron Microscopic Study
A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
research Staining of human skin with RGB trichrome unveils a proteoglycan-enriched zone in the hair dermal sheath
A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.
research Stereographic analysis of syringomas
Syringomas likely start in the upper dermis and form distinct luminal structures.
research The Cytology and Cytochemistry of the Wool Follicle
Wool follicles are complex, involving interactions between different cell types and structures.
research Atypical necrobiosis lipoidica of the face
A 36-year-old man had unusual skin lesions on his face without hair loss.
research Cryo-Electron Microscopy of Trichocyte (Hard α-Keratin) Intermediate Filaments Reveals a Low-Density Core
Trichocyte filaments have a low-density core and may include proteins for hair structure.
research Ultrastructural visualization of cross-linked protein features in epidermal appendages
Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
research “Dark Cells” in Normal, Hyperplastic, and Promoter-Treated Mouse Epidermis Studied by Conventional and High-Voltage Electron Microscopy
research Ultrastructure of two types of glandular hairs of salvia farinacea benth during development
Capitate trichomes have more endoplasmic reticulum and vacuoles, while peltate trichomes have more plastids and larger subcuticular spaces.
research Solitary, subcutaneous, fixed, firm, and fast-growing nodule
A man had a non-cancerous, fast-growing skin lump on his arm that was removed with surgery.
research Atrichia with papular lesions resulting from mutations in the rhesus macaque (Macaca mulatta) hairless gene
Mutations in the hairless gene cause hair loss and skin cysts in rhesus macaques.
research Structural features of the α-type filaments of the inner root sheath cells of the guinea pig hair follicle
α-type filaments in guinea pig hair follicles have unique structural features.
research Regenerative Hair Pigmentation via Skin Organoids: Adaptive Patterning Mediated by Collagen VI and Semaphorin 3C
Collagen VI and Semaphorin 3C are important for hair pigmentation and could help treat pigmentation disorders.
research Visible characteristics and structural modifications relating to enlarged facial pores
Enlarged facial pores are denser, more contrasted, and linked to changes in skin structure and hair follicles.
research Trichoscopic findings of discoid lupus erythematosus alopecia: A cross-sectional study
Shiny white structures in trichoscopy can indicate long-standing discoid lupus erythematosus alopecia.
research New Aspects of the Structure of Human Scalp Hair-II: Tubular Structure and Material Flow Property of the Medulla.
The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.
research New aspects of the structure of human hair on the basis of optical microscopic observations of disassembled hair parts.
Human hair's strength comes from a honeycomb-like structure and macrofibrils.
research Culture of amelanotic melanocytes derived from human fetal hair follicles
Melanocytes from human fetal hair follicles were successfully cultured, showing potential for hair disease research and clinical use.