research Compound Follicles in Folliculitis Decalvans Do Not Contain Vellus and Retained Telogen Follicles—A Pilot Histopathologic Series on Polytrichia
Compound follicles in folliculitis decalvans mainly have active hair follicles.
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research Pathologic Quiz Case: Unexplained Hair Loss—1 Boy, 2 Cats, and 1 Dog
The boy had trichotillomania, causing hair loss, and treatment focused on habit reversal and support.
research Trichoscopy
Trichoscopy is a useful tool for examining and monitoring hair and scalp conditions.
research A girl with loose anagen hair syndrome and concurrent uncombable hair syndrome
A girl had two rare hair conditions that helped understand their overlap.
research Plica polonica following use of homeopathic antidandruff shampoo containing canthalin
A homeopathic antidandruff shampoo caused severe hair matting in a girl.
research Adult Onset Hair Casts: Nits Which Do Not Itch!
Hair casts are harmless but can be mistaken for head lice.
research Hoxc13 mutant mice lack external hair
Hoxc13 gene is essential for hair, nail, and papilla development.
research Isolated Body Hair Loss: An Unusual Presentation of Lichen Planopilaris
A man with rare Lichen Planopilaris lost body hair, not scalp hair, and treatment stopped itching but didn't regrow hair.
research Tufted hair folliculitis developing in a recalcitrant lesion of pemphigus vulgaris
Scalp inflammation can cause multiple hairs to grow from one follicle.
research Pediculosis
Scalp biopsies are important for diagnosing hair loss conditions.
research KERATOSIS FOLLICULARIS WITH UNUSUAL INVOLVEMENT OF THE SCALP
A rare case of severe scalp hair loss and nail issues in keratosis follicularis was observed.
research Acquired curved hair is caused by fusion of multiple hair matrix cells
Curved hair can develop when hair cells merge abnormally during growth.
research Disruption of P2RY5, an orphan G protein–coupled receptor, underlies autosomal recessive woolly hair
Mutations in the P2RY5 gene cause autosomal recessive woolly hair.
research Inducible ß-Catenin Activation and PTEN Inactivation Elicit Follicular Tumours, Not Papillomas: A Potential Paradigm for Trichilemmomas in Cowden’s Disease
Activating β-catenin and inactivating PTEN cause follicular tumors, not papillomas, similar to those in Cowden’s Disease.
research Human hair morphology: a scanning electron microscopy study on a male Caucasoid and a computerized classification of regional differences.
Hair varies in size and features depending on body region.
research 877 Small T antigen from a folliculotropic polyomavirus activates canonical Wnt/β-catenin signaling in vivo
A virus protein can activate a pathway that may lead to abnormal hair follicle development.
research Excessive hair in women
research Do you know this syndrome? * Você conhece esta síndrome? *
The document concludes that Loose Anagen Hair Syndrome is a benign condition where hair is thin and easily pulled out, often improving with age.
research Acquired loss of hair pigment associated with a flexural dermatosis
research Hoxc-Dependent Mesenchymal Niche Heterogeneity Drives Regional Hair Follicle Regeneration
Hoxc genes control hair growth through Wnt signaling.
research A rare case of Leydig cell tumor resulting in female pattern hair loss
research Trichostasis spinulosa of the scalp mimicking Alopecia Areata black dots
A man's scalp condition was misidentified as hair loss dots but was actually a common follicular disorder.
research Hair Plucking and Alopecia in a Flock of Sheep in Zaria, Nigeria
Switching to coarser feed and providing hay improved the sheep's health.
research The Transverse Anatomy of Androgenic Alopecia
The study found that horizontal sections of scalp biopsies are better for analyzing hair loss, showing fewer hairs and more fine hairs in balding areas.
research A case of pili torti in a young adult domestic short-haired cat
A young cat had a rare hair condition with twisted hair shafts but stayed healthy.
research Hair cross-sectioning in uncombable hair syndrome: An easy tool for complex diagnosis
The document suggests finding a simpler, cheaper way to diagnose Uncombable Hair Syndrome.
research Overexpression of Hoxc13 in differentiating keratinocytes results in downregulation of a novel hair keratin gene cluster and alopecia
Overexpression of Hoxc13 in hair cells causes hair loss and skin issues.
research Plica Neuropathica (Polonica) Secondary to Diffuse Alopecia: A Case Report and Literature Review
Plica neuropathica can occur with diffuse alopecia and should be considered in diagnosis.
research A homozygous missense variant in type I keratin KRT25 causes autosomal recessive woolly hair
A genetic variant in the KRT25 gene causes tightly curled hair.
research Perspectives on Hair Evolution Based on Some Comparative Studies on Vertebrate Cornification
Hair in mammals likely evolved from glandular structures, not scales.