December 2001 in “中華皮膚科醫學雜誌” An 18-year-old boy had a harmless skin nodule near his nose with hair and oil glands inside.
14 citations
,
April 1976 in “Journal of Cutaneous Pathology” A calcified nodule on a boy's face came from hair follicles and expelled calcium through the skin.
9 citations
,
April 1985 in “Archives of Dermatology” Recognizing the "bamboo hair defect" is crucial for diagnosing Netherton's syndrome.
January 2022 in “Clinical Cases in Dermatology” A woman's scalp nodule was a common, harmless pilar cyst, treated by surgical removal.
7 citations
,
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.
4 citations
,
August 1991 in “The Journal of Dermatology” The tumor on the man's nose was a rare type called pedunculated follicular hamartoma.
7 citations
,
May 2020 in “Trends in molecular medicine” The document concludes that the immune-inhibitory environment of the hair follicle may prevent melanoma development.
2 citations
,
August 1994 in “Archives of dermatology” A 19-month-old boy with a rare hair disorder showed mild improvement with treatment, but his family chose gentle hair care due to limited success.
5 citations
,
March 1981 in “PubMed” A girl grew extra hair in areas where she had insect bites.
Basaloid follicular hamartoma is a rare, benign skin growth often misdiagnosed.
October 2023 in “Indian dermatology online journal” The young woman has a benign, hereditary skin condition with no signs of a more serious syndrome.
2 citations
,
May 2018 in “Dermatologic Surgery”
December 2023 in “International Journal of Research in Dermatology” Halo Scalp Ring is a rare newborn hair loss that can be missed, and early diagnosis can avoid extra tests and worry for parents.
January 2025 in “International Journal of Dermatology” Consider TFI in facial hypopigmentation diagnoses and confirm with a biopsy.
96 citations
,
December 1995 in “Journal of Investigative Dermatology”
May 2020 in “JOJ Dermatology & Cosmetics” A rare skin condition usually on the face was found on a man's heel.
April 2023 in “Authorea (Authorea)” Hair transplantation can improve scars after removing a rare skin cancer.
December 2021 in “International journal of research - granthaalayah” A young woman had a rare, usually non-cancerous tumor on her face that was initially mistaken for a different condition.
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.
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.
1 citations
,
February 2014 in “Hair therapy & transplantation” A baby boy had two types of temporary hair loss at birth, which might be two forms of newborn hair loss combined.
47 citations
,
April 2000 in “Experimental Dermatology” A new gene mutation causes a rare type of hair loss.
1 citations
,
January 2009 A 25-year-old Malay fireman had skin bumps on his neck that were removed successfully after other treatments failed.
January 2020 in “Acta dermato-venereologica” People with certain hair disorders may also have missing permanent teeth.
6 citations
,
February 2020 in “Journal of Cutaneous Pathology” Nevus psiloliparus lacks mature hair follicles but keeps other skin structures intact.
1 citations
,
January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
21 citations
,
June 1992 in “Pediatric Dermatology” Eruptive vellus hair cysts are often underreported and need histologic confirmation for accurate diagnosis.
December 2022 in “Curēus” Genetic testing confirmed a young girl has Atrichia with Papular Lesions due to mutations in the hairless gene.
5 citations
,
January 2012 in “International journal of trichology” A 2-year-old boy had no hair and unusual organ placement, and it's unclear if it's genetic or coincidental.
20 citations
,
January 2002 in “Laboratory Animals” Mutations in the hairless gene cause hair loss and skin cysts in rhesus macaques.