Version May 2024
| Criteria | Description | |
| Negative features Neither can be present in melanoma | Symmetrical pigmentation pattern | Symmetric pigment pattern across all axes. |
| Presence of only a single color | Presence of only 1 color:
| |
| Positive features At least one feature has to be present to consider the diagnosis of melanoma | Multiple (5-6) colors | Presence of 5 or 6 of the above colors. |
| Blue-white veil | Irregular and confluent blue pigmentation with an overlying white "ground glass" film, not associated with red-blue lacunae. | |
| Multiple brown dots | Aggregations of dark brown dots, usually within the body of the lesion. | |
| Multiple blue/gray dots | Diffuse, partly aggregated dots, "pepper-like" in appearance. | |
| Peripheral black dots or globules | Black dots or globules at or near the edge of the lesion. | |
| Broadened network | Pigment network with areas of thick grids. | |
| Pseudopods | Finger-like projections with small knobs at their tips, which are directly connected to the tumor body or the pigment network. | |
| Radial streaming | Radial and asymmetric linear extensions at the edge of the lesion. | |
| Scar-like depigmentation | White, irregular area of depigmentation. | |
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