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.
44 citations
,
May 1980 in “Archives of Dermatology” "20-nail dystrophy" can have multiple causes.
2 citations
,
May 2014 in “PubMed” A 10-year-old boy was diagnosed with a rare scalp condition causing hair loss and treated with a topical cream.
7 citations
,
January 2013 in “Indian dermatology online journal” A rare skin condition with dark, thick, warty patches and some hair loss was found in a newborn boy.
July 2025 in “JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH” Trichofolliculoma should be considered in children with scalp nodules for accurate diagnosis and treatment.
36 citations
,
December 2004 in “British Journal of Dermatology” The cyst had unusual keratin spherules and resembled bone marrow.
14 citations
,
August 2004 in “Veterinary Dermatology” The horse had a rare type of hair loss caused by immune cells attacking hair follicles.
2 citations
,
May 1991 in “PubMed” Nevus comedonicus is a rare skin condition causing dark bumps, treatable with retinoic acid or surgery.
July 2019 in “Journal of the ASEAN Federation of Endocrine Societies” The woman had a rare adrenal tumor removed, and she recovered well with no signs of the tumor returning.
4 citations
,
June 1989 in “Archives of Dermatology” A man had a black pore on his cheek, which was removed and found to be a hair follicle tumor.
80 citations
,
January 1979 in “Journal of Surgical Oncology” Keratoacanthoma is a common, usually non-dangerous skin tumor that looks like squamous cell carcinoma but rarely becomes severe.
September 2024 in “Journal of the American Academy of Dermatology” 2 citations
,
October 2001 in “Mycoses” A cat had a rare fungal infection caused by Microsporum gypseum.
1 citations
,
November 2023 in “Curēus” Early diagnosis and treatment of nail and skin conditions can improve health and appearance.
1 citations
,
January 2012 in “Journal of Toxicologic Pathology” A rat had a cyst similar to a hair follicle structure.
2 citations
,
January 2019 in “Acta dermato-venereologica” January 1990 in “The Nishinihon Journal of Dermatology” Follicular structures help differentiate keratoacanthoma from squamous cell carcinoma.
January 2026 in “Surgical & Cosmetic Dermatology”
November 2022 in “Journal of the Endocrine Society” A rare ovarian tumor caused high testosterone and excess hair in a woman, which was resolved after tumor removal.
35 citations
,
September 2006 in “American Journal Of Pathology” Odontogenic keratocysts are caused by abnormal Hedgehog signaling and can lead to tooth and bone issues.
5 citations
,
June 2016 in “University of Zagreb University Computing Centre (SRCE)” Most canine follicular tumors in Croatia are benign, but some can be malignant, so testing is important.
19 citations
,
March 2013 in “Journal of Cutaneous Pathology” The study found unique skin changes in a rare type of alopecia linked to a skin condition called linear morphea.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Dermatophytosis in cats is a common fungal infection that usually resolves itself but can be severe in vulnerable animals.
6 citations
,
July 2015 in “International Journal of Dermatology” Trichoepitheliomas can be hard to distinguish from other skin conditions and often start in teenage years.
9 citations
,
August 2017 in “Journal of comparative pathology” Trichoblastomas in rabbits are linked to uncontrolled embryonic hair growth and have distinct histological features.
2 citations
,
June 2019 in “The Journal of Dermatology” Two cases showed skin abnormalities without bone or neural defects.
6 citations
,
April 2010 in “The American Journal of Surgical Pathology” Trichoblastoma in the breast can be mistaken for cancer, so expert review is crucial to avoid misdiagnosis.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Dermatophytosis is a common cat fungal infection, usually mild but can be severe in weak or young animals.
2 citations
,
August 2014 in “Archivos argentinos de pediatría” A 6-year-old girl with Turner syndrome also had psoriasis, alopecia areata, and trachyonychia.
8 citations
,
February 1994 in “Archives of Dermatology” Basaloid follicular hamartoma's appearance can be similar to other skin conditions, and diagnosis should consider both the look and behavior of the tumor.