December 2018 in “European Journal of Pediatric Dermatology/PD. European journal of pediatric dermatology” Segmental vitiligo affects hair follicle melanocytes, causing small, uniform depigmented spots.
5 citations
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March 1943 in “Archives of Dermatology and Syphilology” A rare case of severe scalp hair loss and nail issues in keratosis follicularis was observed.
September 1997 in “Journal of The European Academy of Dermatology and Venereology” Skin lymphoproliferative disorders are hard to diagnose and often linked to systemic diseases, but most have a good prognosis with accurate diagnosis.
April 2025 in “Asian Journal of Case Reports in Surgery” Trichilemmal carcinoma is a rare skin cancer that requires careful diagnosis and follow-up.
January 2022 in “Revista Dermatológica Centro Uraga” Monilethrix is a genetic hair disorder affecting hair shape, seen in two brothers.
3 citations
,
December 1967 in “Australasian Journal of Dermatology” Becker's Melanosis and Hypertrichosis mainly affects young males, causing brown skin patches and extra hair on one side of the upper body.
7 citations
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May 2021 in “Clinical Case Reports” Alopecic and aseptic nodules of the scalp are rare, treatable, and often resolve with doxycycline or on their own.
61 citations
,
August 1993 in “PubMed” Basal cell epithelioma likely starts from the hair follicle's outer root sheath.
6 citations
,
July 2015 in “International Journal of Dermatology” Trichoepitheliomas can be hard to distinguish from other skin conditions and often start in teenage years.
44 citations
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July 2013 in “Journal of the American Academy of Dermatology” Poliosis circumscripta is a patch of white hair caused by lack of melanin, linked to genetic and acquired conditions.
January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
2 citations
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March 2019 in “Veterinary dermatology” Thymoma in cats can cause hair loss without inflammation.
9 citations
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May 2013 in “JAMA Dermatology” Sunlight exposure improved a patient's skin condition, and there may be a link between a certain disease and skin growths; a leukemia treatment caused changes in hair color and growth.
October 2024 in “Journal of Cutaneous Pathology” Compound follicles in folliculitis decalvans mainly have active hair follicles.
3 citations
,
March 2017 in “Pediatric Dermatology” FOXN1 duplication can cause excessive hair growth.
June 2021 in “Nepalese Journal of Ophthalmology” A 62-year-old woman got a lump on her eyelid from tiny mites, which is the first time this has happened.
September 2024 in “Dermatologica Sinica” Early and accurate diagnosis of congenital smooth muscle hamartomas is crucial to distinguish them from other conditions.
Tumid lupus erythematosus can cause non-scarring hair loss on the scalp and requires careful diagnosis.
2 citations
,
May 2018 in “Dermatologic Surgery” 29 citations
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July 2008 in “British Journal of Dermatology” The patient had paraneoplastic pemphigus without mucosal involvement.
54 citations
,
September 1999 in “PubMed” K15 staining helps distinguish basal cell carcinoma from trichoepithelioma.
419 citations
,
March 2005 in “Proceedings of the National Academy of Sciences” Hair-follicle stem cells can become neurons.
November 2023 in “International Journal of Trichology” A rare form of lupus caused hair loss and skin bumps, diagnosed through biopsy, improved partially with treatment.
2 citations
,
April 2018 in “International Journal of Research in Dermatology” Linear skin conditions are rare, more common in females, and often misdiagnosed without tissue analysis.
13 citations
,
February 2006 in “Clinical and Experimental Dermatology” A benign tumor developed at a girl's BCG vaccination site, not previously linked to the vaccine.
January 2016 in “Indian Dermatology Online Journal” A rare skin condition called Eruptive Vellus Hair Cyst can cause itchy papules on the face.
51 citations
,
May 1984 in “Journal of the American Academy of Dermatology” Benign follicular mucinosis involves immune cells attacking hair follicles.
18 citations
,
February 2001 in “Der Hautarzt” A woman with myotonic dystrophy had multiple skin tumors on her scalp, suggesting a genetic link.
A 2-year-old boy with a rare type of lupus causing hair loss improved with oral steroids.
2 citations
,
September 2021 in “Journal of Pathology of Nepal” Most skin cysts were common types found in unusual body parts, and examining tissue samples is important for accurate diagnosis.