research Unilateral heterochromia of scalp hair with adjacent hypomelanotic skin lesions
The boy's hair and skin color differences are due to a pigmentation disorder.
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research Phylloid terminal hair nevus: A unique clinical entity
A baby had a unique skin condition with a pale patch and surrounding dark hairs, not linked to other health issues.
research Perinevoid Alopecia: Report of Two Cases and Literature Review
Antigens from skin cells may cause hair loss in perinevoid alopecia.
research Subclinical speckled perifollicular melanosis of the scalp.
The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
research Hair and nail disorders
Hair and nail disorders can cause changes in scalp pigmentation, especially with sun exposure and alopecia.
research Eyebrow Pilomatrixoma Presenting With Localized Alopecia and Skin Hypopigmentation
A pilomatrixoma in the eyebrow can cause hair loss and skin lightening.
research Isolated patchy heterochromia with pili annulati features on light and electron microscopy
Isolated patchy heterochromia with pili annulati can occur without other health issues.
research Localized Hair Repigmentation in a 91-Year-Old Woman
A 91-year-old woman's hair turned black in one spot, with skin changes underneath.
research Histopathologic Findings of Cutaneous Hyperpigmentation in Addison Disease and Immunostain of the Melanocytic Population
The study found increased skin pigmentation and variable melanocyte density in a patient with Addison's disease.
research Bilateral Eyelash Poliosis with Raccoon Erythema and Hypopigmentation-Contact Follicular Leukoderma
Topical eyedrops may cause eyelash whitening and skin lightening around the eyes.
research The color of skin: white diseases of the skin, nails, and mucosa
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.
research Disorders of Hair Pigmentation
Hair color is determined by melanin and can be affected by genetic conditions like albinism.
research Persistent depigmented regrowth after alopecia areata
Depigmented hair regrowth after alopecia areata can be permanent.
research Segmental vitiligo with confetti-like peripheral depigmentation.
Segmental vitiligo affects hair follicle melanocytes, causing small, uniform depigmented spots.
research Becker's Melanosis and Hypertrichosis*
Becker's Melanosis and Hypertrichosis mainly affects young males, causing brown skin patches and extra hair on one side of the upper body.
research Pityriasis versicolor on the scalp: An unusual distribution of a common disease
A boy's scalp infection, usually found on the body, was effectively treated with antifungal cream.
research Halo Scalp Ring: An Annular Alopecia Associated with Birth Injury
A hairless patch on a boy's scalp from birth injury improved with minoxidil treatment.
research Halo scalp ring: an undiagnosed neonatal scalp alopecia
Halo Scalp Ring is a rare newborn hair loss that can be missed, and early diagnosis can avoid extra tests and worry for parents.
research Postinflammatory hyperpigmentation: a common but troubling condition
Postinflammatory hyperpigmentation causes dark skin patches and needs personalized treatment.
research Dermoscopy findings of alopecia areata in an African-American patient
Skin color may change how alopecia areata looks under a dermoscope.
research Perifollicular Melanocyte Regeneration in Bullous Pemphigoid
Melanocytes can regenerate around hair follicles in bullous pemphigoid, especially in patients with darker skin.
research Field melanin mapping of the hairless scalp
The study found a specific pattern of uneven melanin distribution on balding scalps that could help understand skin diseases caused by light exposure.
research ERYTHROMELANOSIS FOLLICULARIS FACIEI ET COLLI
Three Iranian men had reddish-brown facial pigmentation with no effective treatment.
research Reversible Facial Hyperpigmentation Associated With Vitamin B12 Deficiency
Vitamin B12 deficiency can cause facial dark spots that go away with treatment.
research Atypical bilateral hyperpigmented macules on the lower legs possibly due to cyclophosphamide.
Cyclophosphamide likely causes skin darkening by affecting hair follicles.
research Origin, Clinical Presentation, and Diagnosis of Facial Hypermelanoses
Facial dark spots can be caused by the sun, genetics, makeup, or medicine, and are diagnosed by patient history and skin tests.
research Patchy alopecia areata sparing gray hairs: a case series
Patchy alopecia areata can affect only pigmented hairs, leaving gray hairs untouched.
research Pigmented Rings With Central Clearing: A Dermoscopic Feature of Melasma
Pigmented rings with central clearing help diagnose melasma more accurately.
research Hyperpigmented Upper Eyelid: A Clue to the Diagnosis of Facial Lichen Planus Pigmentosus in a Patient with Frontal Fibrosing Alopecia
Upper eyelid hyperpigmentation can help diagnose facial lichen planus pigmentosus in patients with frontal fibrosing alopecia.
research Nonsynchronized segmented heterochromia in black scalp hair
A 14-year-old girl's black hair showed unique color changes, suggesting early greying.