September 2022 in “Journal of medical sciences and health” A person had two different benign skin tumors, a trichoadenoma and melanocytic naevi, at the same time but in different places on the face.
3 citations
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December 2020 The interdigital gland in crossbred sheep is similar to skin and has specialized structures for secretion.
A man had a rare pigmented nodule on his scalp that developed from birthmarks.
April 2010 in “The Journal of Urology” Human prostate cells produce more WISP1/CCN4 when there's not enough oxygen.
July 2025 in “Journal of Investigative Dermatology” Androgens reduce THY1 in skin cells, leading to less fat, more fibrosis, and worse healing in males.
4 citations
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September 2020 in “Journal of Cutaneous Pathology”
Tjalma Syndrome is a rare condition in people with lupus, causing fluid buildup and high CA-125 levels, but not due to tumors.
November 2023 in “International surgery journal” A man's neck lump was a trichilemmal cyst, not cancer, and should be fully removed due to rare risk of becoming malignant.
35 citations
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October 2014 in “Wound Repair and Regeneration” The model helps understand scar contraction and develop new treatments.
2 citations
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May 2024 in “International Journal of Dermatology”
5 citations
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January 2012 in “International journal of trichology” A 2-year-old boy had no hair and unusual organ placement, and it's unclear if it's genetic or coincidental.
January 2011 in “Journal of The American Academy of Dermatology” Two patients had a rare combination of red skin spots and white scaly skin lesions not on the genitals.
52 citations
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January 2003 in “Journal of Investigative Dermatology” Thrombospondin-1 is crucial for hair follicle regression and reduced blood vessel growth during the catagen phase.
1 citations
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March 2005 in “Zentralblatt für Gynäkologie” A postmenopausal woman had high testosterone from her right adrenal gland, leading to recommended surgery.
January 2007 in “한국미용학회지” Women without alopecia have more fat tissues and longer hair roots than those with alopecia.
9 citations
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May 2019 in “Medicine” The C-allele and CC-genotype in the PTPN22 gene lower the risk of alopecia areata.
5 citations
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October 2018 in “Dermatologic therapy” Recognizing congenital triangular alopecia is crucial to avoid unnecessary treatments.
October 2022 in “Miscellaneous” A rare, non-cancerous ovarian tumor was successfully treated with surgery, improving the patient's symptoms.
10 citations
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July 2008 in “Journal of Cutaneous Pathology” Increased mucin in the skin might indicate lupus in patients with hair loss, but more research is needed.
5 citations
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November 2001 in “PubMed” An 80-year-old woman's severe hair loss was caused by a hormone-secreting ovarian tumor.
January 2023 in “Indian Dermatology Online Journal” A 23-year-old man has a benign, non-progressive hair loss patch that doesn't respond to treatment but can be cosmetically treated.
21 citations
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January 2024 in “Science Immunology” Regulatory T cells protect hair follicle stem cells by maintaining immune privilege in the skin.
25 citations
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April 1949 in “The journal of experimental zoology” Testosterone applied to rabbit skin increases skin cell growth and changes skin structure.
January 2026 in “JCEM Case Reports” Benign conditions can mimic serious ones in postmenopausal hyperandrogenism, requiring careful diagnosis.
December 2025 in “Doğu Fen Bilimleri Dergisi” Vimentin, desmin, and laminin help maintain rat skin structure.
8 citations
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April 2019 in “Dermatologic Therapy” Tretinoin boosts minoxidil's effect on hair loss by increasing enzyme activity.
28 citations
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January 2012 in “Case Reports in Medicine” Hair-thread Tourniquet Syndrome, where hair or thread tightly wraps around a body part, is not rare and requires early detection to prevent serious damage.
288 citations
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January 2001 in “Journal of Biological Chemistry” Tgm2 helps stabilize dying cells and aids fibroblast attachment to the extracellular matrix.
2 citations
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April 2022 in “International Journal of Research in Dermatology” Pregnant women often experience skin changes, so proper care is needed.
August 1987 in “European journal of endocrinology” The T/SHBG ratio may be a useful marker for androgen activity in women with androgenetic alopecia.