1. Discrete Pigment Network
2. Prominent PN
3. Regular PN
4. Irregular PN
5. Wide PN
6. Narrow PN
7. Broad PN
8. Delicate PN

Global pattern
(reticular, globular, cobblestone, homogeneneous, parallel, starburst, multicomponent, unspecific)

Pigment network
- typical
- atypical 

9. Pseudopods
10. Radial streaming

Streaks (regular, irregular)

11. Brown globules
12. Black dots

Dots/globules (regular, irregular)

13. Whitish veil

Blue - whitish veil

14. White scarlike areas
15. Gray - blue areas

Regression structures
(white areas and/or blue areas)

16. Hypopigmented areas

Hypopigmentation
(focal, multifocal, diffuse)

17. Reticular depigmentation (not significant)

(ADDITIONAL CRITERIA)

Blotches
(localized or diffuse, regular or irregular)

Vascular pattern
(comma-like, hairpin, dotted, linear-irregular, vessels within regression structures)

SITE-RELATED FEATURES

Face: typical pseudonetwork, annular-granular structures, gray pseudonetwork, rhomboidal structures, asymmetric pigmented follicles.

Palms/soles: parallel-furrow, lattice-like, fibrillar, and parallel-ridge patterns