Structureless areas

From dermoscopedia

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 Editor: Ralph P. Braun

 Author(s): Ralph P. Braun     ·  Katrin Kerl     ·  Oriol Yélamos
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Description In this chapter we describe 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 structureless areas and their histopathological correlation including regular blotches, irregular blotches
Author(s) Ralph P. Braun · Katrin Kerl · Oriol Yélamos
Responsible author Ralph Braun→ send e-mail
Status released
Status update August 1, 2019
Status by Ralph P. Braun


In this chapter we describe the dermoscopy term structureless areas and their histopathological correlation including regular blotches, irregular blotches

It has the following subchapters:

Hyperpigmented structureless areas (blotches) Ralph P. Braun, Katrin Kerl, Oriol Yélamos
Regular hyperpigmented structureless areas (regular blotch) Ralph P. Braun, Katrin Kerl, Oriol Yélamos
Irregular hyperpigmented structureless areas (irregular blotch) Ralph P. Braun, Katrin Kerl, Oriol Yélamos
Hypopigmented structureless areas Ralph P. Braun, Katrin Kerl, Oriol Yélamos


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Areas within a lesion that are devoid of any network or other structuresThis glossary term has not yet been described., such as globules or regression structures (i.e., scars, pepperingGray dots, granularityThis glossary term has not yet been described., or blue-white veil over flat areas), are called “structureless areas”. Their size should be at least 10% of the lesions's total surface area. Structureless areas can be hypopigmentedThis glossary term has not yet been described., hyperpigmented or regularly pigmentedThis glossary term has not yet been described..