research Pathologic Quiz Case: A 69-Year-Old Man With a Brown-Black Facial Papule
A rare benign skin growth called melanocytic matricoma was identified in a 69-year-old man.
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research Acantholytic hair casts: A dermoscopic sign of pemphigus vulgaris of the scalp
Hair casts on the scalp may be a sign of ongoing pemphigus vulgaris and could suggest a need to adjust treatment.
research Ultrastructural Resemblance of Basal Cell Epithelioma to Primary Epithelial Germ
Basal cell epithelioma resembles fetal hair follicles, not adult or fetal skin.
research Trichoscopy and LC-OCT findings in sonidegib-induced alopecia in patients with advanced basal cell carcinoma
Sonidegib often causes hair loss, and LC-OCT helps identify early signs.
research KERATIN PHENOTYPES IN BASAL-CELL CARCINOMAS OF THE SKIN
Basal cell carcinoma shows keratin patterns similar to hair follicle structures.
research Spiny keratoderma ‐ a demonstration of hair keratin and hair type keratinization
Spiny keratoderma may be ectopic hair formation on palms and soles.
research Can you diagnose hair loss (Non-scarring alopecia)
Non-scarring hair loss can be diagnosed with two 4mm punch biopsies, one cut vertically and the other transversely.
research A morphometric and histologic study of the scalp in psoriasis. Paradoxical sebaceous gland atrophy and decreased hair shaft diameters without alopecia.
Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.
research Circle hairs involving the extremities in a young girl
Circle hairs are harmless, spiral-shaped body hairs that don't need medical treatment.
research Morphologic and immunologic characterization of a canine isthmus mural folliculitis resembling pseudopelade of humans
Dogs have a skin condition like human pseudopelade, causing hair loss that doesn't improve with treatment.
research Hair regrowth in male and female pattern hair loss does not involve the conversion of vellus hair to terminal hair
Hair regrowth doesn't convert thin hairs to thick hairs, but increases overall hair density.
research Moniletrix. Observación de esta infrecuente displasia pilosa en dos hermanos. Reporte clínico y dermatoscópico
Monilethrix is a genetic hair disorder affecting hair shape, seen in two brothers.
research LB1031 Immune Cell-Mediated Amplification of Stem Cell Activation in Hairy Melanocytic Nevus via Osteopontin-CD44 Axis
Immune cells boost stem cell activity in hairy moles, causing more hair growth.
research Pachyonychia Congenita-Associated Alopecia. A Microscopic Analysis Using Transverse Section Technique
PC-associated alopecia has unique microscopic features.
research Uncombable-hair Syndrome
Four children had unmanageable pale blond hair due to uncombable-hair syndrome.
research A Homozygous Frameshift Mutation in theHOXC13Gene Underlies Pure Hair and Nail Ectodermal Dysplasia in a Syrian Family
A mutation in the HOXC13 gene causes hair and nail problems in a Syrian family.
research 889 Trpv3 gain-of-function mutation impairs differentiation of hair follicle inner root sheath
A specific mutation in the TRPV3 gene causes hair follicle cells to develop improperly, leading to hair loss.
research Clinicopathologic observation of temporal triangular alopecia
Temporal triangular alopecia usually starts in early childhood and treatment with Minoxidil has limited effectiveness.
research Widespread and eruptive comedonal lesions with alopecia
A man with skin and hair symptoms improved partially with specific treatment.
research Trichoblastoma with sebaceous and sweat gland differentiation
A rare benign skin tumor showed unusual features of sebaceous and sweat glands, important for correct diagnosis.
research Two siblings with uncombable hair syndrome: A new pathogenic variant
Two siblings have a rare hair condition caused by a new genetic variant.
research 840 Early and late matrix progenitors form the terminally differentiated cell layers of the hair follicle
Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
research Eccrine Duct Dilation as a Marker of Cicatricial Alopecia
Enlarged sweat gland ducts may indicate scarring hair loss.
research Expression of vascular endothelial growth factor (VEGF) in various compartments of the human hair follicle
Dermal papilla cells mainly drive blood vessel growth in hair follicles.
research Isolated long white eyelash: An underrecognized trichologic finding
A single long white eyelash is a rare but benign condition.
research Alopecia Universalis Associated with Cutaneous T Cell Lymphoma
Some patients with a type of skin lymphoma can experience a rare, non-scarring hair loss that looks like another hair loss condition but has distinct features.
research Clinical and Molecular Diagnostic Criteria of Congenital Atrichia with Papular Lesions11This paper originally appeared in issue 117:1662–1665, 2001. Following publication the authors indicated that important corrections at page proof were not taken in. To ensure that the paper is published as intended, the editors have decided to reproduce the contents in full.
Congenital atrichia with papular lesions is often misdiagnosed, and new diagnostic criteria can improve accuracy.
research Woolly Hair in Two Siblings
Two siblings have a rare genetic condition causing curly, coarse hair.
research Rekindling the lost hair‐forming world
Non-hairy skin cells might be used to regenerate hair, helping with baldness and skin wounds.
research Navigating diagnostic challenges in syphilitic alopecia: insights from dermoscopy
Syphilitic alopecia can look like alopecia areata, so careful diagnosis is important.