research Hair Casts
Hair casts may be caused by repetitive hair pulling or styling and are often misdiagnosed.
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research Lupus comédonien
A man was diagnosed with a rare form of lupus after showing unique skin symptoms that responded well to treatment.
research Disseminated Nonsegmental Vitiligo Associated With Halo Nevi and Premature Gray Hair
A rare combination of halo nevi, nonsegmental vitiligo, and early gray hair can occur together.
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 Perinevoid Alopecia: Report of Two Cases and Literature Review
Antigens from skin cells may cause hair loss in perinevoid alopecia.
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.
research Primary Proca hair and the double-peak optics of black holes
Black holes with primary Proca hair can have unique shadows with inner rings, affecting how we observe them.
research Trichoscopic findings of discoid lupus erythematosus alopecia: A cross-sectional study
Shiny white structures in trichoscopy can indicate long-standing discoid lupus erythematosus 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 A Prospective Study of Dermoscopic and Ultrastructural Features of Vitiligo-Associated Leukotrichia
The study found that white hair in vitiligo has specific patterns and structures, which vary with the stage of the disease and may be similar to another hair condition.
research Reflectance Confocal Microscopy of the Yellow Dot Pattern in Alopecia Areata
Reflectance confocal microscopy confirms that yellow dots are signs of damaged hair follicles in alopecia areata.
research Fractal Pattern in the Premature Graying of Hair: A Case Report
A 32-year-old man with early graying hair shows a unique pattern, suggesting more research is needed on why hair grays early.
research Numerous faces of yellow dots
Yellow dots look different in various hair loss conditions and can help diagnose them.
research Pinpoint white dots in the scalp: Dermoscopic and histopathologic correlation
Small white dots on the scalp seen with a dermoscope correspond to sweat ducts and vary with different hair disorders.
research Patchy alopecia areata sparing gray hairs: a case series
Patchy alopecia areata can affect only pigmented hairs, leaving gray hairs untouched.
research Follicular red dots in areas with an anatomic colocalization of alopecia areata and vitiligo
Follicular red dots can appear where alopecia areata and vitiligo overlap.
research Striking White Hair
Poliosis causes white hair patches due to lack of melanin.
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 Polarized Versus Diffractive Microscopy in Distinguishing Scarring From Non‐Scarring Alopecia
Polarized light microscopy is better at distinguishing scarring from non-scarring alopecia than diffractive microscopy.
research A comparative study of histopathologic features in alopecia areata and pattern hair loss
The study found certain scalp biopsy features can help tell apart alopecia areata from pattern hair loss even when typical immune cells are not seen.
research BH21 Segmented heterochromia with calibre change: an under-recognized sign of alopecia areata
Segmented hair color changes can indicate active alopecia areata.
research Ring-shaped Alopecia on the Scalp in a 3-month-old Infant
The infant's hair loss resolved naturally by 20 months without treatment.
research Persistent Halo Scalp Ring Alopecia in a-9-Months Old Infant: Case Report
A 9-month-old baby had a rare, persistent ring-shaped hair loss condition.
research Nonsynchronized segmented heterochromia in black scalp hair
A 14-year-old girl's black hair showed unique color changes, suggesting early greying.
research Leukotrichia Developed Following Application of Intense Pulsed Light for Hair Removal
Some people's hair turned white or gray after using intense pulsed light for hair removal, and for some, it was permanent.
research Banded Scalp Hair with an Unusual Glistening Appearance in a Teenager: A Quiz
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.
research Pili Annulati
The patient's hair has unique structural differences with alternating bright and dark bands.
research Pigmented Rings With Central Clearing: A Dermoscopic Feature of Melasma
Pigmented rings with central clearing help diagnose melasma more accurately.
research A retrospective review of hyperaesthetic leucotrichia in horses in the USA
Hyperaesthetic leucotrichia in horses causes painful, recurring skin lesions and hair color changes, especially in Arabian and American paint horses.
research Dermoscopy findings of alopecia areata in an African-American patient
Skin color may change how alopecia areata looks under a dermoscope.