25 citations
,
December 2008 in “Journal of Dermatological Case Reports” Skin color may change how alopecia areata looks under a dermoscope.
12 citations
,
January 2013 in “Indian dermatology online journal” Dermatopathia pigmentosa reticularis causes skin discoloration, hair loss, and nail problems.
December 2018 in “European Journal of Pediatric Dermatology/PD. European journal of pediatric dermatology” Segmental vitiligo affects hair follicle melanocytes, causing small, uniform depigmented spots.
February 2013 in “Journal of the American Academy of Dermatology” Follicular red dots can appear where alopecia areata and vitiligo overlap.
3 citations
,
August 2017 in “Clinical case reports” A rare skin condition causes red and dark patches on the face and limbs.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
1 citations
,
October 2022 in “Dermatology practical & conceptual” Isolated patchy heterochromia with pili annulati can occur without other health issues.
June 2025 in “British Journal of Dermatology” Melanocytic matricoma can look like skin cancer but is usually harmless; surgery and follow-up are advised.
1 citations
,
September 2017 in “BMJ” The man has a disease causing skin patches, thickened nerves, and mild muscle weakness.
September 2018 in “CRC Press eBooks” Hair and nail disorders can cause changes in scalp pigmentation, especially with sun exposure and alopecia.
6 citations
,
June 1986 in “The Journal of Dermatology” Reticular erythematous mucinosis syndrome can occur with minimal mucin deposition.
October 2025 in “Indian Journal of Dermatology” Dermoscopy can help diagnose tuberous sclerosis by identifying unique skin patterns.
July 2019 in “Indian dermatology online journal” Alopecia areata can show unusual red-dotted vessels and dithranol treatment may mask typical patterns.
March 2026 in “Journal of Investigative Dermatology”
November 2023 in “BMJ case reports” A man in his 30s had patchy hair loss on his leg due to primary follicular mucinosis.
1 citations
,
December 2024 in “Case Reports in Dermatology” Cyclophosphamide likely causes skin darkening by affecting hair follicles.
17 citations
,
May 1969 in “American Journal of Physical Anthropology” The silver marmoset's skin is thin, lacks pigment cells, and has unique features like keratinized spines and specialized glands.
February 2022 in “Authorea (Authorea)” PAON shows skin patterns due to genetic mosaicism.
3 citations
,
December 1967 in “Australasian Journal of Dermatology” Becker's Melanosis and Hypertrichosis mainly affects young males, causing brown skin patches and extra hair on one side of the upper body.
18 citations
,
February 2001 in “Der Hautarzt” A woman with myotonic dystrophy had multiple skin tumors on her scalp, suggesting a genetic link.
20 citations
,
September 2021 in “Nature communications” Cat color patterns are determined early in development by gene expression and epidermal changes, with the Dickkopf 4 gene playing a crucial role.
The document concludes that dermatology training and grading scales need to better represent dark-skinned individuals to improve diagnosis and assessment of skin conditions.
28 citations
,
June 1995 in “The Journal of Dermatology” The flaky skin mouse mutation is a natural model for studying human psoriasis.
12 citations
,
December 2021 in “Dermatology” Trichoscopy can help diagnose and assess disease activity in connective tissue diseases by identifying specific hair and scalp signs.
4 citations
,
July 2019 in “Clinics in Dermatology” The document concludes that while white skin, nail, and mucosa diseases increase skin cancer risk, they are generally harmless, especially compared to darker pigmentation conditions.
13 citations
,
September 2011 in “Archives of dermatology” A patient with steroid sulfatase deficiency had a unique hair pattern and a brain malformation not previously linked to the condition.
11 citations
,
May 2010 in “Pigment Cell & Melanoma Research” Two genes, Tabby and Ticked, determine cat coat patterns.
May 2020 in “JOJ Dermatology & Cosmetics” A rare skin condition usually on the face was found on a man's heel.
18 citations
,
January 2002 in “Pediatric Dermatology” A rare skin condition in children can look like other diseases.
32 citations
,
May 1986 in “Archives of Dermatology” The condition is likely inherited in an autosomal-dominant pattern.