Trichoscopy

of trichotillomania(& alopecia areata)

Lidia RudnickaDepartment of Dermatology

Medical University of Warsaw, Poland

Courtesy: Dr. Luis Sanchez

applying mechanical force

to the distal part of the hair shaft

TRICHOTILLOMANIA

black dots in trichoscopy of trichotillomania

Trichoscopy in trichotillomania: broken hairs

coiled hairs flame hairstrichoptilosistransverse

fracture

Flame hairs– a marker of trichotillomania

V - sign

Tulip hairs in trichotillomania

coiled hairs flame hairstrichoptilosistransverse

fracture

multipleirregularly broken hairs

flame hairs

TRICHOTILLOMANIA

alopecia areata ?

trichotillomania ?

Exclamation mark

hairs

Black dots

Yellow dots

Alopecia areata in trichoscopy

Alopecia areata – exclamation mark hairs

MULTIPLEexclamation mark hairs

Alopecia areata

SINGLEexclamation mark hairs

Trichotillomania

Multiple exclamation mark hairs

= high disease activity

Alopecia areata – black dots

black dotsa marker of high disease activity in alopecia areata

but not specific for alopecia areata

Alopecia areata – yellow dots

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Trichotillomania Alopecia areata Tinea capitisRakowska et al. 2013

Alopecia

areata

Tricho-

tillomania

• Yellow dots

• Black dots

• Exclamation mark

hairs

• Broken hairs

• Flame hairs

• Coiled hairs

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