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MAJOR CRITERIA - ATYPICAL PIGMENT NETWORK
Definition

Cutaneous melanoma, 0.45 mm thick
(original magnification 10x)

TOTAL SCORE: 5

Prominent (hyperpigmented or broad) and irregular network
Histological Correlates

Hyperpigmented or broadened rete ridges with irregular shape or distribution

 

SAMPLE LESION
Irregular and prominent (atypical) pigment network (white arrow)
(7-point score: 2)
streaks (black arrowhead)
(score: 1)
blotches (white arrowhead)
(score: 1)
irregular dots and globules (black arrow)
(score: 1)
TOTAL SCORE: 5
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