Irregular dots

From dermoscopedia

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 Editor: Ralph P. Braun

 Author(s): Ralph P. Braun     ·  Oriol Yélamos
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Description This chapter covers the 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. term irregular dotsAny distribution of dots other than dots as described for regular dots. and its histopathological correlation
Author(s) Ralph P. Braun · Oriol Yélamos
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Status released
Status update July 2, 2019
Status by Ralph P. Braun


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Dots schematic 24.jpg

Irregular dotsAny distribution of dots other than dots as described for regular dots. tend to be heterogenous in size, shape and color and are frequently found at the periphery of a given lesion or scattered throughout the lesion.

In melanomas, dots are irregularly distributed and may be found focally at the periphery of lesions. Blue-gray dots can also correspond with small dermal aggregates of pigmented BCCAbbreviation for Basal Cell Carcinoma. Red dots are equivalent to dotted vesselstiny pinpoint vessels and can be seen in diverse cutaneous tumors such as keratinocyte carcinomas, Spitz neviThis glossary term has not yet been described. and melanomas [1].
  1. Massi et al.: Histopathologic correlates of dermoscopic criteria. Dermatol Clin 2001;19:259-68, vii. PMID: 11556235.