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.
81 citations
,
March 2006 in “Journal of Investigative Dermatology” Mutations in the DSG4 gene cause specific hair and scalp issues.
1 citations
,
January 2017 in “International Journal of Trichology” A new mutation caused a rare hair disorder in a Polish girl, not inherited from her family.
1 citations
,
March 2023 in “Tidsskrift for Den norske lægeforening” Keratosis pilaris is a common skin condition causing a bumpy texture, sometimes linked to other diseases, with various treatments available.
October 1967 in “Archives of Dermatology” A 42-year-old woman had a scalp lesion that didn't cause hair loss and showed specific changes under a microscope.
2 citations
,
January 1989 in “The Nishinihon Journal of Dermatology” Seborrheic keratosis likely originates from the upper regions of hair follicles.
21 citations
,
April 2000 in “Journal of Cutaneous Pathology” The hamartoma is an abnormal hair growth with limited development in the upper hair follicle.
41 citations
,
January 1992 in “Journal of medical genetics” The study found that males with KFSD had severe skin and eye symptoms, while female carriers had milder symptoms.
May 2020 in “JOJ Dermatology & Cosmetics” A rare skin condition usually on the face was found on a man's heel.
1 citations
,
January 2013 in “Indian journal of dermatology, venereology, and leprology” A girl inherited excessive body hair from her mother and grandmother.
January 2022 in “Clinical dermatology review” A girl with a rare skin condition called Keratosis Follicularis Spinulosa Decalvans showed no significant improvement with treatment.
32 citations
,
July 2001 in “Journal of the American Academy of Dermatology” SLHA can be hard to diagnose and needs teamwork between specialists.
April 2016 in “Journal of the American Academy of Dermatology” A 4-year-old girl had a rare hair disorder affecting only part of her scalp.
1 citations
,
September 2015 in “Serbian Journal of Dermatology and Venereology/Serbian Journal of Dermatology and Venerology” A 19-year-old male had two rare skin conditions causing scarring and permanent hair loss.
12 citations
,
January 2013 in “Indian dermatology online journal” The document reports a unique case of woolly hair with a combination of conditions not previously seen together.
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.
15 citations
,
May 2014 in “Journal of dermatology” Zouboulis syndrome is a rare condition that helps diagnose monosomy 18p early.
26 citations
,
December 1979 in “Journal of Cutaneous Pathology” Seborrheic keratoses may partly come from hair follicle cells.
12 citations
,
January 2000 in “Journal of cutaneous medicine and surgery” Microorganism overgrowth and hyperkeratosis may trigger immune reactions causing lichen planopilaris.
175 citations
,
August 1997 in “Nature Genetics”
December 2025 in “International Journal of Research in Dermatology” Keratosis pilaris is common in young females, and dermoscopy helps diagnose it accurately.
September 2021 in “CRC Press eBooks” Lichen planopilaris causes permanent hair loss and scarring due to damage to hair follicles and can be mistaken for other hair loss conditions.
36 citations
,
July 1996 in “The journal of investigative dermatology/Journal of investigative dermatology” Mice with the 'lanceolate hair' mutation have abnormal hair and skin similar to human Netherton's syndrome.
April 2018 in “Journal of Investigative Dermatology” The keratin network in mouse skin changes during cornification and affects the skin's protective barrier.
8 citations
,
January 2014 in “Indian Dermatology Online Journal” Trichostasis spinulosa is a common but often unnoticed skin condition involving bundled vellus hairs, especially in people with darker skin or UV exposure.
5 citations
,
March 1981 in “PubMed” A girl grew extra hair in areas where she had insect bites.
February 2022 in “Authorea (Authorea)” PAON shows skin patterns due to genetic mosaicism.
November 2018 in “Skin appendage disorders” The document concludes that a woman has both Frontal Fibrosing Alopecia and Lichen Simplex Chronicus, a previously unreported combination of conditions.
44 citations
,
January 2017 in “Journal of Investigative Dermatology” Mutations in the KLHL24 gene cause skin blistering in epidermolysis bullosa simplex.
January 2017 in “대한미용학회지” The cuticle layer in hair follicles thickens during keratinization due to incomplete cytosol loss.