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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840-870 / 1000+ resultsresearch Trichostasis spinulosa: An overlooked entity
Trichostasis spinulosa is a common but often unnoticed skin condition involving bundled vellus hairs, especially in people with darker skin or UV exposure.
research Alopecia Universalis Associated with a Mutation in the Human hairless Gene
A mutation in the human hairless gene causes alopecia universalis.
research Establishment and characterization of a canine keratinocyte organoid culture system
A new method to study dog skin diseases using lab-grown skin cells was developed.
research Alopecia X in a cloned Pomeranian dog
Alopecia X in Pomeranians is likely genetic, not environmental.
research Immunoperoxidase anti-keratin staining of epidermal and pilar cysts
Epidermal cysts come from the skin, while pilar cysts come from hair follicles.
research Skin and hair abnormalities of Cantu syndrome: A congenital hypertrichosis due to a genetic alteration mimicking the pharmacological effect of minoxidil
Cantu syndrome, which causes excessive hair growth and skin issues, is due to a mutation in the ABCC9 gene, and understanding this could help develop new treatments for hair diseases.
research Rippled‐pattern trichomatricoma
A unique hair tumor with a rippled pattern was identified, showing incomplete differentiation and unusual cell arrangements.
research Hox in the Niche Controls Hairy-geneity
Hox genes control hair growth patterns in mammals by regulating stem cell activity in the skin.
research “Degeneration” in Dermatopathology
The document concludes that understanding tissue degeneration is crucial for diagnosing skin lesions.
research A Case of Cutaneous Focal Mucinosis With Follicular Induction
A man with a skin nodule was diagnosed with a rare skin condition called cutaneous focal mucinosis, which can be confused with other skin cancers.
research Trichofolliculoma on gluteal area: A unique case report
A rare benign skin nodule was found on the buttock, a unique location for this condition.
research Clinicopathologic study of 90 cases of trichofolliculoma
Trichofolliculoma is a unique benign tumor mainly affecting middle-aged adults' faces, often misdiagnosed without histopathology.
research Acquired and inheritedhair disorders
Hair disorders can be genetic or acquired, affecting hair growth and loss differently.
research A transient dermal niche and dual epidermal programs underlie sweat gland development
Sweat gland development involves two unique skin cell programs and a temporary skin environment.
research Clouston Syndrome: Report of a Jordanian Family with GJB6 Gene Mutation
A Jordanian family with Clouston syndrome has a common GJB6 gene mutation.
research Congenital Hair Anomaly in Association with Hypodontia of Permanent Teeth: A Quiz
People with certain hair disorders may also have missing permanent teeth.
research Depletion of Gsdma1/2/3 alleviates PMA-induced epidermal hyperplasia by inhibiting the EGFR–Stat3/Akt pathway
Removing Gsdma1/2/3 genes reduces skin cell overgrowth by blocking a specific cell pathway.
research A frameshift mutation in the TRPS1 gene showing a mild phenotype of trichorhinophalangeal syndrome type 1
A small change in the TRPS1 gene leads to a less severe form of a syndrome affecting hair, nose, and finger development.
research Mutant laboratory mice with abnormalities in hair follicle morphogenesis, cycling, and/or structure: annotated tables
Mutant mice help researchers understand hair growth and related genetic factors.
research Heterogeneity of ornithine decarboxylase expression in 12-O-tetradecanoylphorbol-13-acetate-treated mouse skin and in epidermal tumors
ODC expression in mouse skin and tumors is varied and can be inhibited by retinoic acid or cycloheximide.
research Pseudo Pemphigus Phenotypes in Mice with Inactivated Desmoglein 3
Mice with a mutated Dsg3 gene showed severe symptoms but not the typical blistering of pemphigus vulgaris.
research LB1011 Oncogenic ras mutation induces spatiotemporally specific tissue deformation through converting fluctuated into sustained ERK activation
A specific mutation in Kras causes abnormal tissue changes by making a cell signal continuously active, which disrupts normal cell coordination.
research Relation of Skin Polyamines to the Hairless Phenotype in Transgenic Mice Overexpressing Spermidine/Spermine N1-Acetyltransferase
Excessive putrescine causes hair loss in transgenic mice by disrupting hair follicle development.
research A novel homozygous variant in the dsp gene underlies the first case of non-syndromic form of alopecia
A new gene variant in the DSP gene is linked to a unique type of hair loss.
research PSEUDOPELADE: AN INHERITED ALOPECIA
Pseudopelade is a rare inherited hair loss condition with a genetic cause.
research A Spontaneous Deletion within the Desmoglein 3 Extracellular Domain of Mice Results in Hypomorphic Protein Expression, Immunodeficiency, and a Wasting Disease Phenotype
A gene deletion in mice causes weak protein, immune issues, hair loss, airway problems, and wasting disease.
research Infiltrative Erythemas and Nodules on a Unilateral Cheek Following Inappropriate Use of a Topical Steroid
A woman got a skin condition from misusing a steroid cream, which improved after she stopped using it and started a new treatment.
research Frontal fibrosing alopecia and ulerythema ophryogenes as two entites that can transist one into another
Frontal fibrosing alopecia and ulerythema ophryogenes may be related and can evolve from one to the other.
research Connexin 26 (GJB2) mutations in keratitis–ichthyosis–deafness syndrome presenting with squamous cell carcinoma
Connexin-26 gene mutations may increase cancer risk in KID syndrome patients.