January 2026 in “Journal of Cutaneous Immunology and Allergy” IgG4-related disease can cause scalp hair loss that looks like acne keloidalis nuchae.
5 citations
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August 2000 in “Archives of Pathology & Laboratory Medicine” The nodule on the woman's back was a benign hair follicle tumor, not cancer, but needed removal.
October 2025 in “The Sri Lanka Journal of Dermatology” Inverted follicular keratosis can look like cancer but is actually a harmless tumor.
17 citations
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August 2018 in “Journal der Deutschen Dermatologischen Gesellschaft” Researchers found that dissecting folliculitis of the scalp is linked to obesity, severity increases with duration and number of nodules, and early treatment is important to prevent scarring.
Dissecting cellulitis and folliculitis keloidalis cause intense inflammation without bacterial infection.
2 citations
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March 2016 in “International Journal of Dermatology” Kikuchi–Fujimoto disease can cause scarring alopecia and should be considered in diagnosis.
June 2025 in “British Journal of Dermatology” Better diagnostic and treatment strategies are needed for acne keloidalis nuchae, especially in high-risk groups.
10 citations
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January 2011 in “Annals of Dermatology” A rare scalp tumor involving two hair follicles was successfully removed with surgery, with no recurrence after 7 months.
October 2024 in “GE Portuguese Journal of Gastroenterology” Unexplained excessive hair growth can signal underlying cancer and often indicates a poor prognosis.
17 citations
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January 2014 in “Journal of Oral and Maxillofacial Pathology” Seborrheic keratosis is a common, harmless skin growth that can look like cancer, so it may need a biopsy.