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Description This chapter describes dermoscopy of rosacea
Author(s) Sabine Ludwig · Aimilios Lallas
Responsible author Aimilios Lallas→ send e-mail
Status unknown
Status update July 11, 2017
Status by Ralph P. Braun

the polygonal vessels of rosacea

Rosacea is characterized by a unique dermoscopic vascular pattern of polygonal vessels. Since this pattern of dermoscopic vascular polygons is not present in any other skin disease, this is a sensitive criterion for the diagnosis of rosacea. Regarding the accuracy in evaluation of vascular alterations by dermoscopy, the technique may be additionally useful for follow up of rosacea. Additional dermoscopic findings of rosacea include follicular plugs, white scales, features related to the presence of demodex (“demodex tails”) and whitish amorphic follicular material.[1] However, the frequency of these additional criteria is relatively low.

In papulopustular rosacea, clinically non-visible pustules provide a useful dermoscopic clue for discrimination from lupus erythematosus, but this requires further investigation.

  1. Segal et al.: Dermoscopy as a diagnostic tool in demodicidosis. Int. J. Dermatol. 2010;49:1018-23. PMID: 20931672.
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