January 2026 in “Clinical Case Reports” A 6-year-old girl had both monilethrix and trichorrhexis nodosa, causing brittle hair, with minimal improvement from treatment.
15 citations
,
June 2012 in “British Journal of Dermatology” A new mutation in the KRT86 gene causes a hair disorder with variable expression.
2 citations
,
March 2019 in “Veterinary dermatology” Thymoma in cats can cause hair loss without inflammation.
March 2023 in “JAAD case reports” A new genetic change in the keratin 10 gene caused a skin condition called ichthyosis hystrix in a father and his daughter.
8 citations
,
June 1981 in “Clinica Chimica Acta”
February 2026 in “Journal of Cutaneous and Aesthetic Surgery” Ectopic acanthosis nigricans can occur at surgical sites due to skin graft mismatches.
10 citations
,
January 2013 in “Stem Cells and Development” Scientists identified a unique type of human skin stem cell that could help with tissue repair.
August 2010 in “Journal of Investigative Dermatology” New hair regrowth model introduced, imiquimod kills skin cancer cells, T-cadherin loss makes skin cancer more invasive, no strong link between PTCH1 gene and skin cancer after transplant, and male teens more likely to have hereditary hair loss.
1 citations
,
March 2024 in “Ophthalmic Plastic and Reconstructive Surgery” A pilomatrixoma in the eyebrow can cause hair loss and skin lightening.
23 citations
,
June 2016 in “Journal of Veterinary Internal Medicine” Cats can have hypersomatotropism without diabetes, suggesting current diagnosis methods may miss cases.
April 2024 in “International journal of reproduction, contraception, obstetrics and gynecology” A 17-year-old girl was diagnosed with a rare ovarian tumor, emphasizing the need for fertility preservation and psychosocial care.
January 2005 in “Zhonghua chuangshang guke zazhi” Human hair keratin is a promising material for nerve repair.
16 citations
,
August 2007 in “Histopathology” A woman's rare adrenal tumor caused high testosterone and cortisol levels, which normalized after the tumor was removed.
April 2015 in “Dentistry 3000” Premature hair graying in the face may be influenced by genetics and environment.
15 citations
,
May 2017 in “Journal of Cellular Biochemistry” The hairless protein is important for skin, hair, and may influence cancer development.
10 citations
,
April 2020 in “PloS one” Lack of Crif1 in hair follicle stem cells slows down hair growth in mice.
5 citations
,
May 2011 in “European Journal of Medical Genetics” A genetic duplication on chromosome 5 was linked to a woman's unique combination of medical conditions.
1 citations
,
January 2019 in “Medical principles and practice” A boy's hair loss improved after tumor removal and vitamin D treatment, but hair loss returned despite normal vitamin D and no tumor regrowth.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” Activating Sonic Hedgehog signaling in cancer stroma may help treat basal cell carcinoma.
2 citations
,
February 2018 in “Journal of dermatology & cosmetology” Triangular temporal alopecia is a benign hair loss pattern best diagnosed with dermoscopy, with limited treatment options like surgery and hair transplantation.
3 citations
,
January 2020 in “JAAD Case Reports” A girl had two rare hair conditions that helped understand their overlap.
July 2017 in “Cancer Research” Krt15+ cells in mice can resist radiation, regenerate tissue, and start tumors, suggesting new cancer treatment targets.
28 citations
,
January 1985 in “Journal of the American Academy of Dermatology” A girl with citrullinemia developed pili torti, suggesting a link between the hair condition and the metabolic disorder.
14 citations
,
June 2012 in “Stem Cells” TACE/ADAM17 is essential for maintaining healthy hair and hair follicle stem cells.
61 citations
,
September 1994 in “Journal of Medical Genetics” Pachyonychia congenita is linked to a keratin gene on chromosome 17.
November 2025 in “Frontiers in Endocrinology” A rare tumor caused unusual hormone production leading to Cushing syndrome.
2 citations
,
January 2018 in “PubMed” The man's symptoms improved and the tumor shrank after treatment with cabergoline.
20 citations
,
July 2013 in “European Journal of Oral Sciences” A new PAX9 gene mutation causes missing teeth and hair problems, but not skin or nail issues.
10 citations
,
November 1964 in “Zentralblatt für Veterinärmedizin Reihe A” Benign epithelial tumors in dogs don't spread or become cancerous.
June 2021 in “International journal of research in dermatology” A boy and his father with hereditary hypotrichosis simplex were treated for hair loss, but the treatment result is unknown.