April 2023 in “Journal of Investigative Dermatology” An elderly woman's upper lip lump, thought to be a mucocele, was actually a rare type of lymphoma usually found on legs, treated successfully with chemotherapy and radiation.
April 2021 in “Authorea (Authorea)” A 20-year-old woman had stable Progressive Hemifacial Atrophy and Vitiligo after treatment, suggesting a possible link between the conditions.
May 2025 in “International Medical Case Reports Journal” Lichen planus pigmentosus may indicate undetected hepatitis C infection.
7 citations
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January 2008 in “Indian Journal of Dermatology” Pigmentary mosaicism causes skin color changes and can affect multiple body systems, but has no cure.
A man had a rare pigmented nodule on his scalp that developed from birthmarks.
July 2022 in “European Journal of Dermatology” Brodalumab is more effective than ustekinumab in treating psoriasis.
1 citations
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January 2014 in “The Journal of Dermatology” A patient with Ivemark syndrome developed mixed type vitiligo after a hepatitis C infection, showing different treatment responses and immune cell involvement in the skin.
6 citations
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August 2011 in “Anais Brasileiros de Dermatologia” Vellus hair cysts can cause acne-like bumps that don't respond to treatment.
2 citations
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October 2016 in “Nutrition in clinical practice” Vitamin B12 deficiency can cause facial dark spots that go away with treatment.
20 citations
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January 2002 in “Laboratory Animals” Mutations in the hairless gene cause hair loss and skin cysts in rhesus macaques.
November 2017 in “International journal of research in dermatology” A rare skin disorder, nevus comedonicus, can appear on one side of the body following Blaschko's lines.
November 2022 in “Indian Journal of Dermatology/Indian journal of dermatology” Valproic acid can cause dark lines on nails.
July 2025 in “Pigment International” Follicular vitiligo causes hair to gray without skin color loss.
2 citations
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July 2018 in “Chinese Journal of Dermatology” Sebaceous nevus changes with age, and dermoscopy and RCM are effective for diagnosis.
August 2018 in “Pediatric Dermatology” A baby had a unique skin condition with a pale patch and surrounding dark hairs, not linked to other health issues.
March 2026 in “Scientific Journal” Early recognition and evaluation of nevus sebaceus are crucial to detect and manage potential cancerous changes.
8 citations
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January 2006 in “Dermatology Online Journal” The girl's skin condition is benign but challenging to treat due to its size and location.
22 citations
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September 2008 in “International Journal of Dermatology” The case suggests a possible autoimmune link between lichen sclerosus and vitiligo.
June 2021 in “Asian Journal of Medical Sciences” Vitamin B12 deficiency can cause reversible skin darkening.
10 citations
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January 2018 in “International journal of trichology” Eruptive vellus hair cysts are rare and often misdiagnosed, requiring biopsy for accurate diagnosis.
2 citations
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January 2019 in “Springer eBooks” Segmental Vitiligo is a stable, early-onset form of vitiligo that responds well to early treatment and is ideal for repigmentation studies.
March 2021 in “Revista da Associação Médica Brasileira”
3 citations
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March 2021 in “Cureus” A rare combination of halo nevi, nonsegmental vitiligo, and early gray hair can occur together.
3 citations
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August 2017 in “Clinical case reports” A rare skin condition causes red and dark patches on the face and limbs.
7 citations
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November 2011 in “Skin Research and Technology” The study found a specific pattern of uneven melanin distribution on balding scalps that could help understand skin diseases caused by light exposure.
24 citations
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September 2008 in “Clinical and experimental dermatology” Repigmentation in vitiligo may come from melanocyte stem cells in the skin.
February 2013 in “Journal of the American Academy of Dermatology” Follicular red dots can appear where alopecia areata and vitiligo overlap.
September 2012 in “Turkish Journal of Dermatology” Erythema multiforme-like lesions can occur in lupus without drug use or herpes infection.
1 citations
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December 2020 in “Case reports in dermatological medicine” A patient with pemphigus vulgaris improved significantly after treatment for an additional viral skin infection.
29 citations
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June 2005 in “Journal of Zoo and Wildlife Medicine” Most hair loss in captive rhesus macaques is likely due to environmental and behavioral factors.