Description: Atypical network, irregular blotches, blue-white structures and irregular dots in periphery

History:

This 23-year-old man complained of an enlarging mole on the chest for about one year. The lesion was excised, and histology revealed a superficial spreading melanoma with a Breslow index of 0.78 mm. No metastases were detected.

Dermoscopic description: Atypical network, irregular blotches, blue-white structures and  irregular dots in periphery.

 Both 3 point checklist and pattern analysis suggestive of melanoma

3 point checklist.( Zalaudek et al. Br J Dermatol 2006)

Criteria
1. Asymmetry (in colors and structures) +1                   

2. Atypical pigment network   +1                                  

3. Blue-white structures (any blue or white color) +1

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