January 2015 in “Turkiye Klinikleri Journal of Dermatology” Peripilar keratin casts are a helpful sign for diagnosing traction alopecia.
July 2022 in “Indian Journal of Otology” A rare ear-area hair cyst was successfully removed from a 10-year-old boy.
March 2026 in “Dermatology Online Journal” Cystic panfolliculoma is a rare, harmless tumor that can be confused with other skin tumors.
5 citations
,
October 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” The research linked PLCD1 gene variants to the development of trichilemmal cysts.
86 citations
,
April 2009 in “Journal of anatomy” Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.
2 citations
,
January 2017 in “Indian dermatology online journal” A woman had a rare infection of both white piedra and head lice, which improved after 10 weeks of antifungal treatment.
7 citations
,
May 1996 in “PubMed” Milia en plaque can be caused by skin damage, tumors, or external factors.
19 citations
,
April 2013 in “Drug Development and Industrial Pharmacy” Hair follicles are important for the absorption of certain drugs into the skin.
8 citations
,
September 2016 in “The American Journal of Dermatopathology” Enlarged sweat gland ducts may indicate scarring hair loss.
81 citations
,
June 2012 in “European journal of human genetics” Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.
August 1969 in “Archives of Dermatology” After calciphylaxis, rats showed incomplete skin and hair regeneration, resembling scar tissue with fewer hairs.
4 citations
,
April 2000 in “Plastic and Reconstructive Surgery” The document suggests fixing common hair transplant issues by combining artistic principles with plug reduction, recycling, and additional micrograft transplantation, while also potentially using arnica to help with post-operative swelling.
April 2017 in “Journal of dermatological science” Removing PLCg1 from skin cells caused thicker oil glands and less hair in mice.
3 citations
,
March 2013 in “American Journal of Dermatopathology” Ossification in trichilemmal cysts is more common than previously believed.
8 citations
,
May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
4 citations
,
August 2013 in “Pediatric dermatology” Hair casts can be treated with physical removal and special shampoos.
December 2024 in “Genome Biology and Evolution” Snakes and worm lizards lost claw proteins due to similar evolutionary changes.
27 citations
,
December 1999 in “American Journal of Dermatopathology” Necrobiosis lipoidica may need new criteria for accurate diagnosis due to similarities with another condition.
December 2001 in “中華皮膚科醫學雜誌” An 18-year-old boy had a harmless skin nodule near his nose with hair and oil glands inside.
8 citations
,
September 2016 in “Journal of the American Academy of Dermatology” It's important to tell the difference between hair casts, pseudocasts, and nits.
43 citations
,
July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
3 citations
,
July 1990 in “PubMed” Human hair follicles can grow and form structures in a collagen gel, useful for studying hair cell growth.
12 citations
,
December 1965 in “Immunology and Cell Biology” Mild skin injury can trigger mineral deposits in rat skin, even without full calciphylactic response.
1 citations
,
October 2023 in “PROTOPLASMA” 1 citations
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March 2006 in “Journal of Cosmetic Dermatology” The woman's forehead lesion was caused by ointment use and resolved with treatment.
3 citations
,
January 1989 in “The Nishinihon Journal of Dermatology” A hair cyst can become cancerous, showing specific keratins from the hair sheath.
11 citations
,
January 1977 in “Archives of dermatological research” Mouse tail skin has different keratinization near hair follicles and scales.
January 2008 in “Journal of Practical Medical Techniques” Microencapsulated cells can regenerate hair follicles in rat ears.
January 2006 in “International water power & dam construction” Nevus comedonicus can appear later in life and affect both eyelids.
15 citations
,
December 1972 in “Journal of Investigative Dermatology”