February 2026 in “Journal of Cutaneous and Aesthetic Surgery” Ectopic acanthosis nigricans can occur at surgical sites due to skin graft mismatches.
7 citations
,
March 2018 in “Experimental Dermatology” Acne lesions don't show increased keratinocyte growth compared to healthy hair follicles.
6 citations
,
July 2011 in “British Journal of Dermatology” A man with KID syndrome developed a rare cancer in a long-term skin infection.
7 citations
,
March 1993 in “International Journal of Oncology” Basal cell carcinoma shows keratin patterns similar to hair follicle structures.
40 citations
,
May 2010 in “American Journal of Clinical Dermatology” AKN might be a skin marker for metabolic syndrome.
10 citations
,
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.
7 citations
,
July 2019 in “The Journal of Dermatology” Terbinafine effectively treated kerion celsi despite disrupted immune responses.
17 citations
,
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.
2 citations
,
November 2019 in “Cancer reports” The Wnt signaling pathway is not a major factor in the development of keratoacanthoma, a type of skin tumor.
54 citations
,
May 1999 in “Journal of Cutaneous Pathology” Apocrine type cutaneous mixed tumors often resemble hair follicles, sebaceous glands, and apocrine glands.
September 2021 in “CRC Press eBooks” Acne keloidalis nuchae is a hair loss condition affecting men of African descent, causing scar-like bumps on the scalp and neck.
1 citations
,
March 2006 in “Journal of Cosmetic Dermatology” The woman's forehead lesion was caused by ointment use and resolved with treatment.
1 citations
,
January 2022 in “Clinical dermatology review” A young man's cheek papule was identified as a benign hair follicle tumor using a skin surface microscope.
6 citations
,
January 2017 in “JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH” A rare hair follicle tumor was found on a woman's vulva.
8 citations
,
November 2015 in “The American journal of dermatopathology/American journal of dermatopathology” Punctate follicular porokeratosis is a skin condition with specific features seen in hair follicles.
January 2022 in “Journal of clinical and diagnostic research” A rare skin bump with tiny hairs was successfully removed from a man's face.
10 citations
,
November 2007 in “Annals of Diagnostic Pathology” A rare benign tumor with hair follicle features was found on a man's trunk.
January 2025 in “Indian Journal of Dermatopathology and Diagnostic Dermatology” Nevus sebaceous is identified by unique skin changes, including thickened skin, fewer hair follicles, and many sebaceous glands.
36 citations
,
December 2004 in “British Journal of Dermatology” The cyst had unusual keratin spherules and resembled bone marrow.
March 2026 in “South Asian Research Journal of Medical Sciences” Removing keratin plugs and ingrown hairs improved scalp inflammation.
December 2023 in “Curēus” Surgical removal of a scalp keratoacanthoma is effective and prevents recurrence, but hair may not regrow.
January 2026 in “International Journal of Dermatology Venereology and Leprosy Sciences” Metformin may improve acanthosis nigricans by reducing insulin resistance.
1 citations
,
January 2009 A 25-year-old Malay fireman had skin bumps on his neck that were removed successfully after other treatments failed.
30 citations
,
October 1994 in “Journal of Cutaneous Pathology” Multiple perifollicular fibromas may actually be unrecognized cases of Birt-Hogg-Dubé syndrome.
6 citations
,
January 1985 in “ACTA HISTOCHEMICA ET CYTOCHEMICA” Tumor cells in calcifying epithelioma of Malherbe resemble hair follicle cells.
3 citations
,
January 1989 in “The Nishinihon Journal of Dermatology” A hair cyst can become cancerous, showing specific keratins from the hair sheath.
43 citations
,
May 1988 in “British Journal of Dermatology” Patients with acanthosis nigricans often have insulin resistance and signs of increased male hormones, but treatment targeting these male hormones is generally ineffective.
21 citations
,
September 1968 in “Cancer” Citrulline in certain skin tumors suggests they mimic hair growth, helping distinguish them from other cancer types.
5 citations
,
January 2016 in “Indian dermatology online journal” A 25-year-old man with multiple skin tumors was successfully treated with acitretin and methotrexate.
6 citations
,
October 1998 in “PubMed” Antifungal treatment can improve severe skin infections with cutaneous horns.