May 2015 in “Actas Dermo-Sifiliográficas” A young man was unexpectedly diagnosed with basal cell carcinoma after a scalp examination and confocal microscopy.
June 2023 in “JAAD Case Reports” A man had a rare skin cancer that looked like a bald spot.
June 2026 in “Indian Dermatology Online Journal” A supernumerary nipple was correctly identified using dermoscopy, avoiding misdiagnosis.
9 citations
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June 2017 in “The American journal of dermatopathology/American journal of dermatopathology” The study found increased skin pigmentation and variable melanocyte density in a patient with Addison's disease.
7 citations
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January 2008 in “Indian Journal of Dermatology” Pigmentary mosaicism causes skin color changes and can affect multiple body systems, but has no cure.
June 2025 in “Australasian Journal of Dermatology” Pigmented rings with central clearing help diagnose melasma more accurately.
April 2023 in “Authorea (Authorea)” A young woman with a rare skin cancer was diagnosed late because her symptoms were unusual for the disease.
10 citations
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September 1994 in “International Journal of Dermatology” Three Iranian men had reddish-brown facial pigmentation with no effective treatment.
1 citations
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February 2017 in “The American journal of dermatopathology/American journal of dermatopathology” A man with a skin nodule was diagnosed with a rare skin condition called cutaneous focal mucinosis, which can be confused with other skin cancers.
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.
2 citations
,
April 2025 in “Pediatric Dermatology” Macular alopecia is a distinct, non-scarring hair loss pattern that mostly affects young Hispanic/Latinx females and often resolves on its own.
October 1967 in “Archives of Dermatology” A 42-year-old woman had a scalp lesion that didn't cause hair loss and showed specific changes under a microscope.
35 citations
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July 2007 in “Dermatologic clinics” Facial dark spots can be caused by the sun, genetics, makeup, or medicine, and are diagnosed by patient history and skin tests.
5 citations
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January 2018 in “Indian Dermatology Online Journal” A brown shadow seen in dermoscopy is a marker for lichen nitidus.
4 citations
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January 2011 in “European journal of dermatology/EJD. European journal of dermatology” A boy had a rare scalp condition with thickened skin and different-colored hair.
January 2025 in “Indian Dermatology Online Journal” Hydroxychloroquine may cause nail discoloration in lupus patients.
September 2017 in “Journal of Investigative Dermatology Symposium Proceedings” A 73-year-old woman with Hypopigmented Mycosis Fungoides, a rare skin lymphoma, experienced disease progression despite treatment, emphasizing the need for ongoing monitoring.
7 citations
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March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
1 citations
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December 2018 in “Journal of cutaneous pathology” Some skin growths with mucin can form hair follicles and resemble skin cancer, but a special stain can help tell them apart.
2 citations
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October 2016 in “Nutrition in clinical practice” Vitamin B12 deficiency can cause facial dark spots that go away with treatment.
21 citations
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September 2015 in “Journal of the European Academy of Dermatology and Venereology” Yellow and orange colors are important for diagnosing certain skin conditions.
3 citations
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August 2017 in “Clinical case reports” A rare skin condition causes red and dark patches on the face and limbs.
Melanocytes can regenerate around hair follicles in bullous pemphigoid, especially in patients with darker skin.
Hair turning darker can be a sign of skin cancer.
June 2021 in “Asian Journal of Medical Sciences” Vitamin B12 deficiency can cause reversible skin darkening.
January 2026 in “JCEM Case Reports” A rare case of Cushing's syndrome and pheochromocytoma requires careful re-evaluation to avoid complications.
13 citations
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September 1997 in “Archives of Dermatology” The boy likely has a fungal infection causing hair loss.
8 citations
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May 2003 in “Clinical and Experimental Dermatology” A 14-year-old girl's black hair showed unique color changes, suggesting early greying.
July 2022 in “European Journal of Dermatology” Brodalumab is more effective than ustekinumab in treating psoriasis.
4 citations
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July 2019 in “Clinics in Dermatology” The document concludes that while white skin, nail, and mucosa diseases increase skin cancer risk, they are generally harmless, especially compared to darker pigmentation conditions.