The seven-point checklist of dermoscopy

Criteria		Definition	Score*
Major criteria	Atypical pigment network	Prominent (hyperpigmented or thick) and irregular network.	2
	White-blue areas	Irregular, structureless white-blue area with an overlying "ground-glass" film. It cannot occupy the entire lesion.	2
	Atypical vascular pattern	Linear irregular or dotted vessels, irregularly distributed outside areas of regression.	2
Minor criteria	Radial streaming (streaks)	Radial and asymmetric linear or bulbous projections at the edge of the lesion.	1
	Irregular blotches	Black, brown and/or gray structureless areas with irregular shape or distribution.	1
	Irregular dots and globules	Black or brown round structures irregularly distributed.	1
	Regression structures	White scar-like depigmentation and/or "peppering".	1

For the diagnosis of melanoma, a total score of 3 or more is required.

* In the Revised 7-point checklist (Argenziano G, et al. Br J Dermatol 2011; 164:785), all scores have a value of 1 and the threshold for excision is 1 instead of 3.

Original table modified for this publication. Argenziano G, Soyer HP, Chimenti S, et al. Dermoscopy of pigmented skin lesions: Results of a consensus meeting via the Internet. J Am Acad Dermatol 2003; 48:679. Table used with the permission of Elsevier Inc. All rights reserved.

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The seven-point checklist of dermoscopy