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MINOR CRITERIA - RADIAL STREAMING (STREAKS)
Definition

Cutaneous melanoma, 0.6 mm thick
(original magnification 10x)

TOTAL SCORE: 3

Radially and asymmetrically arranged linear or bulbous extensions at the edge of the lesion
Histological Correlates

Confluent radial junctional nests of melanocytes

 

SAMPLE LESION
Streaks (black arrowhead)
Irregular dots and globules (thin black arrow)
Regression pattern consists of white areas (asterisk) and peppering (thick black arrow) (score: 1)

 

TOTAL SCORE: 5
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