Pyogenic granuloma

From dermoscopedia

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 Editor: Pedro Zaballos

 Author(s): Pedro Zaballos     ·  Ignacio Gómez Martín
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Description 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 pyogenic granulomaThis glossary term has not yet been described.
Author(s) Pedro Zaballos · Ignacio Gómez Martín
Responsible author Pedro Zaballos→ send e-mail
Status unknown
Status update August 15, 2017
Status by Ralph P. Braun


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Common, benignis any condition that is harmless in the long run, acquired, vascular lesionThis glossary term has not yet been described. of the skin and mucosaThis glossary term has not yet been described.. Typically presents in children or young adults as a solitary, rapidly growing, red papule or nodule that tends to ulcerationThis glossary term has not yet been described. and bleeding. They are related to infective organisms, penetrating injury, hormonal factors (pregnancyThis glossary term has not yet been described.), retinoid therapy, or other systemic medications (i.e., docetaxel).

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.[1]:

  • Reddish or red-whitish homogeneous area: a structureless zone whose color varies from completely red to red with whitish zones.
  • White collarette: a ring-shaped or arcuate squamous structure that is usually located at the periphery of the lesions.
  • White rail linesstreaksThis glossary term has not yet been described.: white streakslines radial (always at periphery) streaks Reed nevus melanoma recurrent nevus that intersect the lesion.
  • Vascular structuresThis glossary term has not yet been described. (dotted vesselstiny pinpoint vessels, hairpin vesselsThis glossary term has not yet been described., linear-irregular vessels, telangiectasias, polymorphous vesselsmultiple types of vessels are present may indicate malignancy in appropriate context for example in flat melanocytic lesions).
  • UlcerationThis glossary term has not yet been described. may be present

The most frequent dermoscopic pattern of pyogenic granuloma consists of reddish homogenous areas separated by white lines resembling rails and surrounded by a white collarette.

Vascular Figure 4.jpg



ReferencesThis is material contained in a footnote or bibliography holding further information.:
  1. Zaballos et al.: Dermoscopy of pyogenic granuloma: a morphological study. Br. J. Dermatol. 2010;163:1229-37. PMID: 20846306. DOI.