From dermoscopedia

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 Authored by: Pedro Zaballos     ·  Ignacio Gómez Martín

 Keywords:   angiokeratoma
Description This chapter describes dermoscopyDermoscopy is a non invasive diagnostic method. of angiokeratomais a benign cutaneous lesion of capillaries, resulting in small marks of red to blue color and characterized by hyperkeratosis
Author(s) Pedro Zaballos · Ignacio Gómez Martín
Owner Pedro Zaballos→ send e-mail
Status released
Status update August 5, 2017
Status by Ralph P. Braun


Angiokeratomas are acquired vascular lesions that present as shiny, soft, dark red to violaceous, 2–10 mm papules which may develop a blue-violaceous to black colorColor (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color categories, with names such as red, yellow, purple, or blue. and a surface scale[1]. Four clinical subtypes of angiokeratomas have been described: solitary angiokeratoma (the most common type), angiokeratoma of Mibelli, angiokeratoma of Fordyce, and angiokeratoma corporis diffusum.

DermoscopyDermoscopy is a non invasive diagnostic method.:

  • Dark lacunaeThis glossary term has not yet been described.: sharply demarcated, ovoid structures with a dark blue, dark violaceous or black color.
  • Blue-White veil: confluent blue pigmentation with an overlying whitish haze.
  • Ulceration and surface scale may be present.
  • Rarely, rainbow patternCircumscribed structureless areas displaying colors of the whole spectrum of visible light may be present.

  1. Zaballos et al.: Dermoscopy of solitary angiokeratomas: a morphological study. Arch Dermatol 2007;143:318-25. PMID: 17372096. DOI.