21 citations
,
April 2000 in “Journal of Cutaneous Pathology” The hamartoma is an abnormal hair growth with limited development in the upper hair follicle.
Pseudofolliculitis causes painful bumps and dark spots from shaving, especially in people with curly hair, and can be treated by changing shaving habits and using specific topical treatments.
9 citations
,
May 2013 in “European Journal of Dermatology” Dermoscopy can non-invasively detect eruptive vellus hair cysts on the labia majora.
78 citations
,
June 1989 in “The Journal of dermatologic surgery and oncology” Acne keloidalis is a chronic skin condition on the back of the neck in young black men, needing surgery for severe cases.
1 citations
,
December 2019 in “American journal of ophthalmology. Case reports” A rare skin condition caused droopy and outward-turning eyelids in a patient.
May 2020 in “International journal of dermatology and venereology” Hair matrix cysts are rare skin nodules with unique features, often needing surgical removal.
6 citations
,
September 2014 in “Journal of the American Academy of Dermatology” Researchers found a potential new type of skin growth called follicular mucinous nevus.
May 2019 in “Journal of the Dermatology Nurses’ Association” Folliculitis decalvans mainly affects middle-aged African American men and is treated with antibiotics.
August 1994 in “Journal of Dermatological Science” 5 citations
,
March 2016 in “Experimental and molecular pathology” Mice with alopecia areata had wider lymphatic vessels in their skin.
May 2025 in “Oral Sciences Reports” A lip nodule from a filler injection was successfully removed with surgery.
1 citations
,
June 2014 in “International Journal of Dermatology” Pregnancy can trigger follicular mucinosis, which may resolve after delivery.
6 citations
,
August 2011 in “Anais Brasileiros de Dermatologia” Vellus hair cysts can cause acne-like bumps that don't respond to treatment.
5 citations
,
January 1985 in “The Journal of Dermatologic Surgery and Oncology” A man developed unusual growths after a hair transplant, which were treated successfully with no recurrence after a month.
March 2022 in “Ophthalmology Journal” A woman's rare benign eyelid tumor was correctly identified through detailed tissue analysis.
November 2023 in “International surgery journal” A man's neck lump was a trichilemmal cyst, not cancer, and should be fully removed due to rare risk of becoming malignant.
2 citations
,
May 1991 in “PubMed” Nevus comedonicus is a rare skin condition causing dark bumps, treatable with retinoic acid or surgery.
3 citations
,
November 2019 in “The American Journal of Dermatopathology” Widened sweat ducts are a very specific sign of scarring hair loss.
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.
June 2026 in “Indian Dermatology Online Journal” A supernumerary nipple was correctly identified using dermoscopy, avoiding misdiagnosis.
81 citations
,
August 1979 in “Archives of Dermatology” Trichofolliculomas can sometimes be more aggressive than thought.
2 citations
,
November 2020 in “The American journal of dermatopathology/American journal of dermatopathology” Sweat duct differentiation in trichilemmal cysts is very rare and can be successfully removed with surgery.
2 citations
,
January 2022 in “International journal of trichology” Eruptive vellus hair cysts are often missed in diagnoses.
April 2025 in “Veterinary Dermatology” Dermoscopy is useful for identifying skin lesions in dogs, with specific features distinguishing infundibular keratinising acanthomas from follicular cysts.
6 citations
,
April 2013 in “British Journal of Dermatology” Hidradenitis suppurativa is likely caused by blocked hair follicles, not apocrine glands.
25 citations
,
January 2006 in “Journal of the European Academy of Dermatology and Venereology” A new technique effectively treats and diagnoses eruptive vellus hair cysts without recurrence.
December 2017 in “Canadian journal of ophthalmology” A rare skin condition was misdiagnosed as a harmless mole on a woman's eyelid.
October 2025 in “Pediatric Dermatology” A 16-year-old boy's facial condition improved with doxycycline, suggesting an immune response to hair follicle damage.
17 citations
,
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.
6 citations
,
January 2017 in “JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH” A rare hair follicle tumor was found on a woman's vulva.