June 2024 in “British Journal of Dermatology” KRT14 gene variants cause dermatopathia pigmentosa reticularis, affecting nails, teeth, and hair.
20 citations
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October 2005 in “Archives of Dermatological Research” 87 citations
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August 1974 in “Journal of Investigative Dermatology” 11 citations
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March 2004 in “Journal of Comparative Pathology” Norfolk Terriers have a genetic skin defect causing scaling and blisters due to a keratin issue.
May 2020 in “JOJ Dermatology & Cosmetics” A rare skin condition usually on the face was found on a man's heel.
1 citations
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January 1989 in “Springer eBooks”
4 citations
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January 2011 in “Dermatology” A patient grew extra hair on their ears after treatment for testicular cancer, possibly due to hormonal changes or genetics.
September 2016 in “Journal of dermatological science” The conclusion is that the variation in hair thinness in patients is mostly due to the amount of underdeveloped hairs, and treatments that thicken fine hairs might work for those with mild to severe conditions.
32 citations
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May 1986 in “Archives of Dermatology” The condition is likely inherited in an autosomal-dominant pattern.
January 2018 in “Skin appendage disorders” A woman's hair loss was correctly diagnosed as Lichen planopilaris after initial misdiagnosis, highlighting the usefulness of trichoscopy in diagnosing hair disorders.
December 2014 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Hair removal with intense pulsed light can cause rare skin lesions that are hard to fully treat.
February 2025 in “Pediatric Dermatology” Hair dysplasias involve various hair disorders causing fragility, breakage, and poor hair adhesion.
17 citations
,
November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
21 citations
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June 2004 in “Experimental Dermatology” Ber‐EP4 marks cells related to the secondary hair germ in hair follicles.
48 citations
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July 1993 in “Archives of Dermatological Research” Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
January 2023 in “Journal of Cutaneous Pathology” The study found certain scalp biopsy features can help tell apart alopecia areata from pattern hair loss even when typical immune cells are not seen.
January 2022 in “Dermatology Review” EGFR inhibitors can cause unusual localized hair growth.
10 citations
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January 2010 in “International journal of trichology” Keratin-associated proteins are part of the developing hair fiber cuticle.
5 citations
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January 2016 in “Skin appendage disorders” A rare skin condition called linear lichen planopilaris caused itchy red bumps and hair loss on a man's face.
1 citations
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June 2006 in “Journal of Cosmetic Dermatology” Photoepilation may disrupt normal wound healing and increase the risk of scars.
55 citations
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January 2004 in “The International Journal of Developmental Biology” Corneal cells can transform into hair-producing skin cells when exposed to certain signals.
1 citations
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April 2023 in “Clinical, cosmetic and investigational dermatology” Antigens from skin cells may cause hair loss in perinevoid alopecia.
6 citations
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December 1990 in “PubMed” Keratinocytes in hair follicles differentiate similarly to skin cells, with specific patterns in different regions.
December 2025 in “Cureus” Topical treatments like AHAs, BHAs, and urea may help keratosis pilaris, but evidence is limited.
March 1990 in “Journal of Dermatological Science” April 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” A girl with excessive hair growth had a genetic change on chromosome 17 that reduced the activity of two genes linked to hair growth.
June 2025 in “British Journal of Dermatology” A rare dual diagnosis of alopecia areata and lichen planopilaris requires thorough evaluation for effective treatment.
March 2020 in “Clinical research in dermatology” Two unusual cases showed that Lichen Planopilaris can look like other skin conditions and need early treatment to protect hair.
2 citations
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September 2021 in “JAAD case reports” A man with a weakened immune system was diagnosed with a rare skin condition called trichodysplasia spinulosa using skin examination techniques.