May 2026 in “Signal Transduction and Targeted Therapy” This study found that rete ridge morphogenesis in mammalian skin is directed by a BMP-dependent developmental program, which is evolutionarily distinct from other known pathways controlling the development of hair follicles, sweat glands, and fingerprint ridges.
30 citations
,
December 2017 in “Clinical, Cosmetic and Investigational Dermatology” This study found significant differences in hair density, non-vellus hair diameter, and percentage of miniaturized hair between normal women and those with female pattern hair loss, particularly in the midscalp and parietal areas.
3 citations
,
March 2013 in “American Journal of Dermatopathology” This study found that ossification in trichilemmal cysts may be more common than previously thought, often associated with cyst wall rupture, and reports a novel case of ossifying TC with extramedullary hematopoiesis.
25 citations
,
September 2006 in “Birth Defects Research” This article discusses various skin pattern formations, their molecular mechanisms, and highlights the need for further understanding to connect molecular biology with organism phenotypes, without providing new clinical findings.
2 citations
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May 2022 in “Clinical, Cosmetic and Investigational Dermatology” This study reports that quantitative trichoscopy, while noninvasive and convenient, provides less accurate hair density data compared to invasive histopathologic examination, which was demonstrated in a sample of adult Chinese individuals without alopecia.
8 citations
,
January 2013 in “International Journal of Trichology” This study found that the BASP classification is an effective and easily remembered method for diagnosing and treating male and female pattern hair loss in the Indian population.
January 2026 in “SSRN Electronic Journal”
9 citations
,
January 2018 in “International Journal of Trichology” This case report discusses cutaneous graft versus host disease presenting as fibrosing alopecia, suggesting a mechanistic model for understanding cicatricial pattern hair loss.
2 citations
,
January 2021 in “Journal of The American Academy of Dermatology” This pilot study found that examining changes in scalp scales after scraping may effectively distinguish seborrheic dermatitis associated with androgenetic alopecia from fibrosing alopecia in a pattern distribution.
9 citations
,
September 2022 in “Frontiers in Physics” This study found that Mueller Matrix microscopy can accurately identify, detect, and evaluate hair follicles in mouse skin tissue, suggesting its potential for skin structure research and dermatological applications.
26 citations
,
February 1991 in “PubMed” This case report highlights trichotillomania's distinguishing "tonsure pattern" and nail-biting, emphasizing the need to differentiate it from other hair loss types due to differing treatments.
November 2025 in “Archives of Dermatological Research” Using a higher concentration of triamcinolone acetonide leads to faster hair regrowth in scalp patchy alopecia areata.
January 2021 in “Nasza Dermatologia Online” This case report describes a 50-year-old Kashmiri woman with plica polonica, detailing trichoscopic findings of entangled hair with crisscrossing shafts and concretions.
June 2024 in “Indian Journal of Plastic Surgery/Indian journal of plastic surgery” This study found that using a specific ratio method based on the patient's scalp measurements can effectively predict the dimensions of the permanent safe zone for hair transplants, particularly in early stages of androgenetic alopecia, potentially ensuring long-lasting transplant results.
32 citations
,
January 2014 in “Dermatology Research and Practice” This study found that trichoscopy can rapidly and noninvasively diagnose tinea capitis and alopecia areata in pediatric patients by identifying specific hair patterns associated with each condition.
This article reviews confocal microscopy findings in trichoepithelioma and desmoplastic trichoepithelioma, noting similarities with histological features, but it provides no new clinical results.
2 citations
,
June 2019 in “International Journal of Dermatology” This study found that while a modified BASP classification for pattern hair loss could classify previously unrecognized types, it was less accurate and harder to use than the existing BASP classification.
January 2020 in “Clinical dermatology open access journal” This study highlights the variation in clinical findings of traction alopecia and emphasizes that changes in hairstyles may prevent progression to scarring alopecia.
September 2022 in “World Journal of Advanced Research and Reviews” This study introduced a Density-Calibrated Airtouch Protocol (DCAP) that suggests customizing the Airtouch hair coloring technique based on client hair density to optimize color blend, pigment longevity, and hair health.
March 2012 in “Journal of The American Academy of Dermatology” In this study, white females with Ludwig I female pattern hair loss had higher hair density on the occipital scalp, while Asian females had thicker hair diameters in both frontal and occipital areas.
January 2002 in “Europe PMC (PubMed Central)” This study presents a follicular automaton model that simulates human hair cycle dynamics and can reproduce hair patterns similar to diffuse or androgenetic alopecia by incorporating spatially heterogeneous parameters and follicle miniaturization.
13 citations
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January 2019 in “Skin appendage disorders” This study reported that fibrosing alopecia in a pattern distribution can occur in patients of color, with clinical and histopathological features allowing for an accurate differential diagnosis.
This study found that structural changes in the stroma surrounding hair follicles and skin laxity are associated with the appearance of large pores, regardless of ethnicity or age.
January 2022 in “Skin appendage disorders” In this study, the researchers found that trichoscopy can effectively visualize scalp micropigmentation, identified by homogenous, grey to black circular dots similar to closely cut hair, potentially reducing the need for invasive procedures.
5 citations
,
November 2017 in “Dermatologica Sinica” In this study, transverse sectioning of scalp biopsy samples showed higher diagnostic accuracy than vertical sectioning for noncicatricial alopecia, although both techniques are important for accurate diagnosis.
22 citations
,
May 2002 in “Skin Research and Technology” This study found that in male androgenetic alopecia, the contrast enhanced phototrichogram technique was superior in detecting changes in hair density and thickness compared to other methods.
44 citations
,
August 2008 in “Archives of Dermatology” This abstract provides no results; it is a website notification about cookies and general access to JAMA content.
1 citations
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May 2015 in “Dermatologic Therapy” The microstrip technique for hair transplantation is effective and discreet for patients needing fewer than 1500 grafts.
February 2026 in “Clinical Cosmetic and Investigational Dermatology” This study found that a family history of androgenetic alopecia and specific trichoscopic signs are strong predictors of female pattern hair loss, leading to a nomogram model for risk prediction.
23 citations
,
November 2014 in “Anais Brasileiros de Dermatologia” This study suggests that trichoscopy may assist in diagnosing pemphigus, particularly for scalp-specific lesions, by identifying certain characteristic features.