May 2020 in “International journal of dermatology and venereology” Hair matrix cysts are rare skin nodules with unique features, often needing surgical removal.
54 citations
,
November 1994 in “Differentiation” Trichohyalin is found in non-hair tissues and works with filaggrin in certain skin areas and conditions.
9 citations
,
February 2016 in “Anatomical Science International” Hair proteins change location and structure as hair cells mature.
7 citations
,
January 1976 in “International Journal of Environmental Studies” Cholesterol may slow cell division and contribute to male pattern baldness.
40 citations
,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
5 citations
,
February 2022 in “Molecular genetics & genomic medicine” New gene variants linked to a rare inherited hair loss disorder were found in three Chinese families.
A new syndrome, Teelwani Syndrome, combines features of two rare genetic disorders.
January 2026 in “JCEM Case Reports” A rare case of Cushing's syndrome and pheochromocytoma requires careful re-evaluation to avoid complications.
44 citations
,
September 2011 in “Journal of Pediatric Gastroenterology and Nutrition” NISCH syndrome is a rare genetic disorder affecting skin and liver, with variable symptoms and limited treatment options.
88 citations
,
June 2000 in “Journal of Investigative Dermatology” Keratin 17 is important for hair and nail structure and affects pachyonychia congenita symptoms.
5 citations
,
September 1989 in “Journal of The American Academy of Dermatology” Talc in street cocaine can cause immune-reactive skin nodules where injected.
47 citations
,
November 1966 in “Archives of Dermatology” Trichorrhexis nodosa is mainly caused by hair trauma, not a metabolic defect.
1 citations
,
January 1980 in “Archives of Dermatology” Syphilis chancres can be atypical, and fiber implantation for baldness is risky and often fails.
July 2021 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Monilethrix causes different levels of hair loss in family members.
9 citations
,
October 2014 in “Experimental and Clinical Endocrinology & Diabetes” Knuckle Acanthosis Nigricans is common in Latin American youth and may indicate early insulin resistance, especially in those with normal weight.
April 2020 in “Journal of the Endocrine Society” A rare ovarian tumor caused high male hormone levels, but surgery fixed it.
April 2018 in “Journal of Investigative Dermatology” Mutations in Far2 mice cause hair loss due to sebaceous gland issues.
8 citations
,
February 2005 in “British Journal of Haematology” Chemotherapy caused the patient's hair to have alternating thick and thin segments.
15 citations
,
May 2014 in “Journal of Biological Chemistry” A chimeric keratin partially improved skin structure in mice lacking keratin 5, but didn't fully restore normal skin.
12 citations
,
January 1994 in “Dermatology” The patient's hair had unique damage and a lower sulfur-to-nitrogen ratio compared to relatives, but not compared to healthy controls.
15 citations
,
August 2022 in “The Application of Clinical Genetics” ABCD1 gene mutations cause adrenomyeloneuropathy, leading to symptoms like limb weakness and spasticity, with management focusing on rehabilitation and spasticity treatment.
20 citations
,
December 2010 in “Journal of Morphology” Lizard claws have hair-like keratins similar to those in mammals.
February 2009 in “Journal of The American Academy of Dermatology” A man with Klinefelter syndrome had a leg ulcer that didn't heal well, even with treatment.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The thyroid nodule was benign, and surgery was successful with a smooth recovery.
74 citations
,
October 2012 in “The American Journal of Human Genetics” Mutations in the HOXC13 gene cause hair and nail development issues.
November 2022 in “Journal of the Endocrine Society” A rare ovarian tumor caused high testosterone and excess hair in a woman, which was resolved after tumor removal.
August 2023 in “Journal of Investigative Dermatology” Different body areas have unique skin cell communication patterns, explaining why certain skin diseases occur in specific regions.
9 citations
,
October 2008 in “British Journal of Dermatology” The growth of the Epstein-Barr virus in the patient's cells was linked to the worsening of her lymphoma.
226 citations
,
May 2004 in “Journal of Biological Chemistry” Collagen XXII is a marker for tissue junctions, aiding in structural integrity and found in muscles, heart, skin, and arthritic joints.
5 citations
,
June 2014 in “Gastroenterology report” Cronkhite-Canada syndrome can sometimes show unusual colonic adenomatous polyps.