From dermoscopedia

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 Editor: Anna Waskiel Burnat

 Author(s): Anna Waskiel Burnat     ·  Lidia Rudnicka     ·  Adriana Rakowska
Description This chapter describes dermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections. of trichotillomaniaThis glossary term has not yet been described.
Author(s) Anna Waskiel Burnat · Lidia Rudnicka · Adriana Rakowska
Responsible author Anna Waskiel Burnat→ send e-mail
Status released
Status update April 4, 2019
Status by Ralph P. Braun


TrichoscopyThis glossary term has not yet been described. of trichotillomania is characterized by presence of hairs broken at different length, black dotsDots are small, round structures of less than 0.1 mm in diameter that have a red color when corresponding to blood vessels; however, when due to melanin, their color ranges from black, brown, to blue-gray depending on the depth and concentration of the melanin in the skin (Tyndall effect)., trichoptilosis, coiled hairs, flame hairs, V-sign and tulip hairs [13].

Moreover exclamation mark hairs, yellow dots and upright regrowing hairs may be observed [13]. Other characteristic, but rarely described trichoscopic findings include hair powder and follicular microhemorrhages [13, 14].


Trichoscopy of trichotillomania with presence of hairs broken at different length, black dots, and tulip hairs.


Coiled hairs in patient with trichotillomania.


Tulip hairs in patient with trichotillomania.