June 2024 in “Dermatopathology” A rare type of skin cancer on the scalp can be mistaken for hair loss, causing delayed diagnosis and severe damage.
18 citations
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November 2003 in “Australasian Journal of Dermatology” Hair loss in this case was caused by a tumor, not typical baldness.
Hedgehog signaling can create new hair follicles but may also cause tumors.
January 2022 in “Clinical Cases in Dermatology” A 47-year-old man was diagnosed with a specific type of hair loss and advised to use certain medications and avoid hair transplants.
September 2011 in “Chinese Journal of Dermatology” A man's skin condition was misdiagnosed and later identified as a rare type of skin cancer, which did not improve with treatment.
24 citations
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November 2003 in “Australasian Journal of Dermatology” A rare skin cancer caused hair loss and spread, needing multiple treatments.
February 2023 in “Cosmoderma” An infant with complete hair loss was diagnosed with a genetic disorder affecting hair growth.
2 citations
,
August 2025 in “Reports — Medical Cases Images and Videos” A rare pigmented skin tumor called melanotrichoblastoma was diagnosed in a 51-year-old woman.
18 citations
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January 1992 in “Dermatology” A 4-year-old girl has a rare condition causing hairlessness and skin bumps, but normal teeth and sweating.
6 citations
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January 1985 in “ACTA HISTOCHEMICA ET CYTOCHEMICA” Tumor cells in calcifying epithelioma of Malherbe resemble hair follicle cells.
2 citations
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February 2018 in “Journal of dermatology & cosmetology” Triangular temporal alopecia is a benign hair loss pattern best diagnosed with dermoscopy, with limited treatment options like surgery and hair transplantation.
3 citations
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November 2010 in “The Journal of Dermatology” A giant blue nevus on the scalp can cause hair loss and may damage underlying structures.
23 citations
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February 2003 in “British Journal of Dermatology” A rare type of skin lymphoma was identified, affecting hair follicles and sweat glands.
October 1967 in “Archives of Dermatology” A 42-year-old woman had a scalp lesion that didn't cause hair loss and showed specific changes under a microscope.
May 2025 in “Journal of the ASEAN Federation of Endocrine Societies” Postmenopausal women with unusual hair growth should be checked for ovarian tumors.
January 2021 in “touchREVIEWS in Endocrinology” Surgery successfully treated a hidden ovarian tumor causing hair loss and excess hair growth in a postmenopausal woman.
August 2010 in “Journal of Investigative Dermatology” New hair regrowth model introduced, imiquimod kills skin cancer cells, T-cadherin loss makes skin cancer more invasive, no strong link between PTCH1 gene and skin cancer after transplant, and male teens more likely to have hereditary hair loss.
11 citations
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July 2010 in “Dermatologic Surgery” Postoperative folliculitis after hair transplants is a minor issue that doesn't relate to patient details or how much hair is transplanted.
4 citations
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July 2015 in “Case Reports in Dermatology” A woman with unexplained hair loss was found to have harmless skin tumors and a scarring hair loss condition, but the tumors didn't cause the hair loss.
35 citations
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January 2008 in “American Journal of Clinical Dermatology” KFSD can be linked to acne keloidalis nuchae and tufted hair folliculitis.
May 2022 in “Journal of Cosmetic Dermatology” The authors suggest a method for hair transplantation in fibrosing alopecia pattern distribution to improve treatment outcomes and cover bald areas.
133 citations
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March 1999 in “Journal of Cutaneous Pathology” Trichoepitheliomas and some basal cell carcinomas likely come from hair follicle stem cells.
December 2023 in “Journal of dermatology” The study concluded that key signs of Keratosis follicularis spinulosa decalvans are changes in terminal hair and vellus hair follicles, which likely start the inflammation and damage to hair follicles.
19 citations
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July 2004 in “Clinical and experimental dermatology” Acneiform follicular mucinosis can be controlled with systemic corticosteroids.
April 2025 in “Asian Journal of Case Reports in Surgery” Trichilemmal carcinoma is a rare skin cancer that requires careful diagnosis and follow-up.
3 citations
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March 1966 in “Archives of Dermatology” Nevoid basal cell carcinomas start in the skin's top layer and hair follicles.
April 2025 in “Veterinary Dermatology” Dermoscopy is useful for identifying skin lesions in dogs, with specific features distinguishing infundibular keratinising acanthomas from follicular cysts.
13 citations
,
November 1985 in “International Journal of Dermatology” The study found clear differences in lesion distribution and microscopic features among trichostasis spinulosa, keratosis pilaris, and eruptive vellus hair cysts.
September 2022 in “IP Indian journal of clinical and experimental dermatology” An 8-year-old girl has a rare genetic disorder causing complete, irreversible hair loss and skin bumps.
53 citations
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September 2011 Other common signs, not just the well-known immune cells around hair bulbs, are important for diagnosing hair loss from alopecia areata.