March 2023 in “Human Pathology” Hair follicle counts and ratios are helpful in diagnosing hair loss types, but should be used with other specific features for accurate diagnosis.
6 citations
,
December 1990 in “PubMed” Keratinocytes in hair follicles differentiate similarly to skin cells, with specific patterns in different regions.
61 citations
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September 2010 in “Genomics” The study found that immune responses disrupt hair growth cycles, causing hair loss in alopecia areata.
1 citations
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December 1971 in “PubMed”
4 citations
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August 2005 in “Archives of Dermatological Research” Higher p63 and CD34 levels found in specific scalp areas may affect hair loss progression.
18 citations
,
April 2002 in “Journal of cutaneous pathology” Tiny infundibular cysts are the main lesions in chloracne, not comedones.
July 2023 in “GLOBAL JOURNAL FOR RESEARCH ANALYSIS” The new treatment showed promise in managing eyebrow hair loss.
60 citations
,
October 2009 in “PubMed” Intralesional steroid injections are safe and effective for treating severe alopecia areata.
4 citations
,
August 2017 in “International journal of molecular sciences” The conclusion is that Pigmented Epithelioid Melanocytoma can start from hair follicle stem cells or from a mole on the skin.
3 citations
,
December 2013 in “American Journal of Dermatopathology” A rare skin growth in a baby was successfully removed without coming back.
January 2020 in “Medpulse International Journal of General Medicine” Trichoscopy helps diagnose and monitor hair loss, showing different signs at various stages of hair thinning.
18 citations
,
December 2014 in “Plastic surgery” Follicular Unit Transplantation is an effective and safe treatment for hair loss due to scarring.
January 2026 in “Annals of Pathology and Laboratory Medicine” Accurate diagnosis of rare pilomatrix carcinoma is crucial for effective treatment.
1 citations
,
February 2022 in “Case reports in endocrinology” An unusual growth of Leydig cells in a woman's ovaries caused her excessive hair growth, which was treated successfully with surgery.
April 2026 in “Brazilian Journal of Hair Health” Perifollicular fibrosis hinders hair regrowth in androgenetic alopecia, and new treatments targeting fibrosis are needed.
January 2003 in “Chinese Journal of Reparative and Reconstructive Surgery” Dermal papilla cells can help form hair follicles and produce hair.
January 2016 in “Indian dermatology online journal” Frontal fibrosing alopecia causes hair loss at the front hairline, and no effective treatment exists.
December 2025 in “SAS Journal of Medicine” Trichofolliculoma is a rare, benign scalp tumor that can be cured by surgical removal.
58 citations
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December 1992 in “British Journal of Dermatology” Rat hair follicles grow longer in vitro, but certain factors can inhibit this growth.
193 citations
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May 2008 in “Development” Activating β-catenin can turn skin cells into hair follicles.
5 citations
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January 2014 in “Journal of Cutaneous and Aesthetic Surgery” A woman had 13 non-cancerous cysts on her scalp successfully removed in one surgery.
23 citations
,
November 2018 in “Journal of the European Academy of Dermatology and Venereology” The study concluded that severity of Frontal fibrosing alopecia is not linked to how long someone has it, can start before menopause, and eyebrow loss may be an early sign.
4 citations
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December 2013 in “Journal of Investigative Dermatology Symposium Proceedings” April 2023 in “The Medical Journal of Australia” A five-year-old girl has a harmless, unchanging bald patch on her scalp.
32 citations
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September 2017 in “Journal of the American Academy of Dermatology” Oral isotretinoin effectively treats yellow facial papules in frontal fibrosing alopecia patients.
17 citations
,
July 1984 in “British journal of dermatology/British journal of dermatology, Supplement” The four patients have a unique type of ichthyosis affecting hair follicles.
4 citations
,
January 2018 in “Advances in Experimental Medicine and Biology” The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.
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.
235 citations
,
January 2011 in “Journal of Clinical Investigation” Men with baldness due to androgenetic alopecia still have hair stem cells, but lack specific cells needed for hair growth.
18 citations
,
March 2015 in “Journal of Dermatological Case Reports” Rectangular black granules, solitary yellow dots, and mostly single-hair follicles suggest Loose Anagen Hair Syndrome.