Benign tumors from hair follicles can look like other skin cancers but have distinct features under dermoscopy.
80 citations
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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.
8 citations
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July 2014 in “American Journal of Dermatopathology” Cutaneous keratocyst and steatocystoma should be called "sebaceous duct cyst" due to their similarities.
September 2022 in “JAAD case reports” The man has a genetic skin condition called pachyonychia congenita.
3 citations
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August 2012 in “The American Journal of Dermatopathology” A man with a birthmark on his scalp developed hair loss that improved with treatment, but the link between the birthmark and hair loss was unclear.
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.
2 citations
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June 2013 in “Journal of Dermatological Case Reports” Olmsted syndrome is a rare skin disorder causing thickened skin and other symptoms.
2 citations
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September 2004 in “Experimental Dermatology” Keratinocyte adhesion problems can cause skin and hair disorders.
2 citations
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March 2023 in “JAAD case reports” Hair repigmentation can indicate malignancy and should be investigated.
8 citations
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January 2011 in “International journal of trichology” Accurate diagnosis of APL is crucial to avoid unnecessary treatments.
3 citations
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November 2010 in “The Journal of Dermatology” A giant blue nevus on the scalp can cause hair loss and may damage underlying structures.
February 2026 in “Journal of Cutaneous and Aesthetic Surgery” Ectopic acanthosis nigricans can occur at surgical sites due to skin graft mismatches.
4 citations
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April 2019 in “JAAD Case Reports” DPR can cause skin, hair, and nail issues, sometimes appearing later in life.
1 citations
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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.
8 citations
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January 2006 in “Dermatology Online Journal” The girl's skin condition is benign but challenging to treat due to its size and location.
12 citations
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August 1988 in “Histopathology” The tumor likely shows dual neural crest differentiation.
12 citations
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September 2012 in “Pediatric Dermatology” The boy's skin condition improved significantly with a specific ointment after other treatments showed only mild results.
June 2022 in “IP Indian journal of clinical and experimental dermatology” A woman had a rare, non-cancerous skin growth on her face, which was removed and did not come back after a year.
February 2020 in “Definitions” Mutations in the KRT16 gene can cause skin and nail disorders.
19 citations
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July 1994 in “International Journal of Dermatology” A 9-year-old boy had a calcium deposit nodule on his earlobe.
May 2020 in “JOJ Dermatology & Cosmetics” A rare skin condition usually on the face was found on a man's heel.
2 citations
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November 2006 in “Pump Industry Analyst” Pilomatricomas don't follow the usual hair follicle cell differentiation process.
16 citations
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May 2017 in “Journal of Clinical Ultrasound” A rare finger tumor was imaged, showing a unique pattern not seen before.
2 citations
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June 2012 in “American Journal of Dermatopathology” A rare neck cyst in a 47-year-old man showed diverse skin cell types and was not linked to HPV.
August 2024 in “Clinical Case Reports” Pilomatricoma is a rare, benign skin tumor that requires surgical removal for best results.
June 2024 in “British Journal of Dermatology” KRT14 gene variants cause dermatopathia pigmentosa reticularis, affecting nails, teeth, and hair.
7 citations
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March 1993 in “International Journal of Oncology” Basal cell carcinoma shows keratin patterns similar to hair follicle structures.
18 citations
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March 2009 in “Experimental Dermatology” Pilomatricoma can develop into various hair-related structures.
1 citations
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April 2023 in “Clinical, cosmetic and investigational dermatology” Antigens from skin cells may cause hair loss in perinevoid alopecia.
5 citations
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June 2008 in “British Journal of Dermatology”