Acne keloidalis nuchae causes scarring on the scalp, mainly in African American males, and early treatment is important to prevent lasting damage.
34 citations
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January 1998 in “Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin” Trichoblastomas may mimic fetal skin development by having many Merkel cells, unlike adult skin.
September 2022 in “Anais Brasileiros de Dermatologia” Dermoscopy helped diagnose a rare skin disease which slightly improved with treatment.
4 citations
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March 2005 in “Archives of Pathology & Laboratory Medicine” Basal cell carcinoma may originate from vellus hair cysts.
9 citations
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July 1993 in “Archives of dermatology” Pityriasis amiantacea is a scalp condition with thick, greasy scales and sometimes hair loss.
32 citations
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January 2006 in “Acta dermato-venereologica” SACUMAN, a rare condition causing hair loss without clear signs, is often misdiagnosed and needs scalp biopsies for accurate detection.
40 citations
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August 2010 in “Archives of dermatology” A 5-year-old boy's skin condition improved with systemic valganciclovir after a cardiac transplant and immunosuppressive therapy.
4 citations
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January 2017 in “Journal of veterinary medical science” A dog had a rare skin tumor called desmoplastic tricholemmoma.
5 citations
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January 2017 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Porokeratotic eccrine and hair follicle nevus is a very rare skin disorder possibly caused by a GJB2 gene mutation.
January 2018 in “Elsevier eBooks” Topical imiquimod is as effective as 5-fluorouracil for treating actinic keratosis, with about a 5% risk of it turning into squamous cell carcinoma.
1 citations
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September 2018 in “Australasian Journal of Dermatology” A boy with GAPO syndrome had hair loss similar to male pattern baldness without hormone issues, possibly due to skin or blood vessel problems.
9 citations
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July 2008 in “Oncology Reports” HPV16-transformed cells can change human skin cell properties, aiding tumor growth.
December 2024 in “Veterinary Dermatology” A sugar glider had a rare skin cancer that worsened despite treatment, highlighting the need for thorough checks in exotic pets.
2 citations
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October 2017 in “Journal of The American Academy of Dermatology” Focal atrichia helps diagnose female pattern hair loss.
1 citations
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July 2018 in “Elsevier eBooks” FAPD and possibly CCCA may be AGA subtypes, and treatments combining antiandrogens, hair growth agents, hair transplants, and anti-inflammatories could be effective.
May 2024 in “Indian journal of child health” A 7-year-old girl had a non-painful skin growth at her belly button, which was removed and identified as a keratinous cyst.
July 2025 in “JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH” Trichofolliculoma should be considered in children with scalp nodules for accurate diagnosis and treatment.
61 citations
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March 1966 in “Archives of Dermatology” Nevoid basal cell carcinomas start in the skin and hair follicles.
2 citations
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May 2022 in “International journal of trichology” Plica neuropathica is a tangled hair condition that may be caused by hair damage or psychiatric issues and is treated by cutting the hair and addressing mental health.
April 2017 in “Journal of Investigative Dermatology” A virus protein can activate a pathway that may lead to abnormal hair follicle development.
26 citations
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May 2001 in “British Journal of Dermatology” Pilomatrixomas likely originate from the hair matrix due to changes in hair keratin expression.
8 citations
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April 2014 in “Clinical and Experimental Dermatology” Eruptive vellus hair cysts likely originate from the infrainfundibulum and sebaceous duct.
7 citations
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July 2006 in “Journal of cutaneous pathology” A 21-year-old had a rare developmental anomaly with a misplaced sebaceous gland in a hair follicle.
12 citations
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January 1991 in “Acta Dermato Venereologica” Basal cell epithelioma-like changes are most similar to normal basal cells.
1 citations
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June 2011 in “대한구강악안면외과학회지” A woman had a cyst in her salivary gland, likely from Botox, which was removed and confirmed as an epidermoid cyst.
14 citations
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January 2010 in “Dermatology” Some people with congenital triangular alopecia have a central tuft of hair in the bald patch, but the cause is unknown.
5 citations
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September 2013 in “The Journal of Dermatology” Researchers found a new mutation in the HR gene causing hair loss and skin bumps in a Pakistani family.
April 2023 in “Journal of Investigative Dermatology” Mutations in the SHH pathway in certain skin cells can cause skin tumors and abnormal hair growth.
1 citations
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May 2024 in “Dermatology Online Journal” Scalp pemphigus vulgaris can be effectively treated with low-dose prednisone and triamcinolone.
4 citations
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August 2017 in “International journal of molecular sciences” The conclusion is that Pigmented Epithelioid Melanocytoma can start from hair follicle stem cells or from a mole on the skin.