April 2019 in “Journal of Investigative Dermatology” Merkel cell carcinoma is most likely to recur within two years of diagnosis, and factors like immune suppression, being over 75, and male sex increase this risk.
January 2014 in “Pathology” Non-scarring hair loss can be diagnosed with two 4mm punch biopsies, one cut vertically and the other transversely.
145 citations
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March 2010 in “Fertility and Sterility” Different types of polycystic ovary syndrome (PCOS) have varying severity, with Type I being the most severe and common.
July 2024 in “Journal of Investigative Dermatology” JAK inhibitors improve hair growth in alopecia areata, especially in patchy types.
8 citations
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May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
1 citations
,
April 2016 in “British Journal of Dermatology” Buschke-Ollendorff syndrome is a rare genetic disorder causing skin and bone changes, with some cases also showing ADHD or developmental delays.
34 citations
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June 1992 in “Journal of Cutaneous Pathology” Harlequin ichthyosis involves abnormal skin cell structures and giant mitochondria, affecting skin and hair.
23 citations
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December 1977 in “Virchows Archiv B Cell Pathology” April 2023 in “Journal of Investigative Dermatology” CD8+ T cells attack hair follicle stem cells, causing scarring and hair loss.
January 2011 in “Reactions Weekly” Long-term use of minoxidil may cause hair follicles to transform into noticeable terminal hairs, leading to trichostasis spinulosa.
32 citations
,
January 2017 in “Orphanet journal of rare diseases” FOXN1 gene mutations cause a rare, severe immune disease treatable with cell or tissue transplants.
1 citations
,
September 2013 in “The Journal of Dermatology” An 8-year-old girl developed a rare skin condition in a linear pattern on one side of her body after a lung infection, which improved with treatment.
16 citations
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July 2021 in “American Journal of Medical Genetics Part A” Mutations in the LSS gene cause hair loss and may affect brain development, with varying severity.
7 citations
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August 2008 in “Immunogenetics” A gene mutation in mice causes increased mast cells and disorganized hair follicles in their skin.
3 citations
,
February 2001 in “British journal of ophthalmology” An Australian with rare hair loss and eye conditions had a gene linked to both, not seen together before.
January 2025 in “Frontiers in Cell and Developmental Biology” Hox proteins help maintain keratinocyte identity by regulating miRNA expression.
6 citations
,
February 2004 in “Clinical and Experimental Ophthalmology” The document concludes that careful diagnosis is crucial for chromosome 13q deletion syndrome, tamoxifen can cause reversible eye damage, finasteride may be linked to cataracts, and OCT is useful for diagnosing macular diseases.
July 2026 in “Journal of Cosmetic Dermatology” Microneedling with minoxidil is best for hair density and satisfaction, but more research is needed.
2 citations
,
January 2022 in “The Application of Clinical Genetics” A young Russian girl with Meier-Gorlin syndrome has two new mutations in the CDC6 gene.
56 citations
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October 2010 in “Pediatric Clinics of North America” Epidermal nevi are skin cell clusters linked to various syndromes.
1 citations
,
May 2023 in “Frontiers in Pharmacology” Genetic screening for NUDT15 polymorphisms is crucial for patients taking azathioprine, especially in Asians.
28 citations
,
May 1978 in “Archives of dermatology” Alopecia mucinosa on the face can be linked to mycosis fungoides, a type of lymphoma.
64 citations
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June 2014 in “Journal of The American Academy of Dermatology” Researchers found a white halo around hair in most patients with a specific type of hair loss, which helps in early diagnosis and treatment.
June 2025 in “British Journal of Dermatology” Melanocytic matricoma can look like skin cancer but is usually harmless; surgery and follow-up are advised.
53 citations
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September 1999 in “Journal of Synchrotron Radiation” Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.
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.
10 citations
,
September 1994 in “International Journal of Dermatology” Three Iranian men had reddish-brown facial pigmentation with no effective treatment.
January 2007 in “Revista del Centro Dermatológico Pascua” A 2-year-old boy was diagnosed with a rare genetic condition causing fragile hair, intellectual issues, and short stature.
5 citations
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October 2016 in “European Journal of Obstetrics & Gynecology and Reproductive Biology” Women with PCOS may have a higher risk of respiratory and ear infections due to slower nasal mucociliary clearance.
June 2023 in “British journal of dermatology/British journal of dermatology, Supplement” A woman's rare hair loss condition improved on its own, suggesting this type might recover like common cases.