32 citations
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August 2016 in “Journal of the American Academy of Dermatology” Temporal triangular alopecia is a non-scarring hair loss in children, often linked to other health conditions.
January 2016 in “Indian Dermatology Online Journal” A rare skin condition called Eruptive Vellus Hair Cyst can cause itchy papules on the face.
January 2021 in “Case Reports” A 71-year-old woman developed male-like features due to high testosterone levels caused by a benign ovarian tumor, which was successfully removed by surgery.
April 2017 in “Journal of Investigative Dermatology” Deleting the CRIF1 gene in mice disrupts skin and hair formation, certain proteins affect hair growth, a new compound may improve skin and hair health, blood cell-derived stem cells can create skin-like structures, and hair follicle stem cells come from embryonic cells needing specific signals for development.
60 citations
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September 2010 in “Journal of the American Academy of Dermatology” Small white dots on the scalp seen with a dermoscope correspond to sweat ducts and vary with different hair disorders.
380 citations
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March 2000 in “Proceedings of the National Academy of Sciences” Overexpressing GLI-1 in mice skin can cause tumors like human basal cell carcinomas.
Hedgehog signaling can create new hair follicles in adult skin but may increase cancer risk.
8 citations
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January 2013 in “Australasian journal of dermatology” Trichodysplasia spinulosa is a rare skin condition caused by a virus, treatable with antiviral medication.
1 citations
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December 2017 in “Acta biomedica scientifica” Women of reproductive age with polycystic ovary syndrome often experience hair loss.
26 citations
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October 2007 in “American Journal of Dermatopathology” Basal cell carcinoma with matrical differentiation is a rare type linked to hair follicles, with .-catenin important for its development.
12 citations
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November 2011 in “Pediatric dermatology” A 16-year-old boy had a rare case of Becker's nevus on his face and mouth.
Genetic factors might cause fibrosing alopecia linked to hair shaft abnormalities.
January 2023 in “Archives of Disease in Childhood Education & Practice” Hirsutism in teens is often due to polycystic ovarian syndrome and needs careful assessment and support.
6 citations
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July 2011 in “British Journal of Dermatology” A man with KID syndrome developed a rare cancer in a long-term skin infection.
September 2016 in “Journal of dermatological science” The OVOL1-OVOL2 axis is important for hair follicle differentiation and can help diagnose certain hair-related tumors.
June 2008 in “Springer eBooks” The document concludes that permanent hair loss conditions are complex, require early specific treatments, and "secondary permanent alopecias" might be a more accurate term than "secondary cicatricial alopecia."
January 2020 in “Journal of Entomology and Zoology Studies” Canine hair follicle stem cells are located in the isthmus/bulge region of the hair follicle.
June 2020 in “AACE clinical case reports” A woman's severe male hormone excess was caused by a small, hard-to-find ovarian tumor.
15 citations
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May 2014 in “Journal of dermatology” Zouboulis syndrome is a rare condition that helps diagnose monosomy 18p early.
September 1997 in “Journal of The European Academy of Dermatology and Venereology” Examining scalp tissue under a microscope helps diagnose and understand hair loss diseases.
2 citations
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March 1994 in “Oncology Reports” Keratoacanthomas and squamous cell carcinomas have similar keratin patterns, making them hard to tell apart.
264 citations
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October 1958 in “Archives of Dermatology” A 4-year-old girl has a rare hair condition causing fragile, short hair.
6 citations
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January 2000 in “Dermatology” A girl's severely tangled hair couldn't be fixed and had to be cut due to a rare condition called plica neuropathica.
7 citations
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May 1996 in “PubMed” Milia en plaque can be caused by skin damage, tumors, or external factors.
3 citations
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January 2020 in “JAAD Case Reports” A girl had two rare hair conditions that helped understand their overlap.
October 2025 in “Indian Journal of Paediatric Dermatology” The infant's hair loss resolved naturally by 20 months without treatment.
28 citations
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February 2014 in “Journal of Cutaneous Pathology” Keratoacanthoma changes as it grows, showing different hair follicle characteristics at each stage.
2 citations
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August 2025 in “Reports — Medical Cases Images and Videos” A rare pigmented skin tumor called melanotrichoblastoma was diagnosed in a 51-year-old woman.
September 2024 in “Journal of the American Academy of Dermatology”
October 2023 in “Journal of the Endocrine Society” A woman's increased facial hair and hair loss were caused by a rare ovarian tumor, cured by surgery.