Description: Dermoscopy- Atypical broadened pigment network, Blue White structures and Dotted vessels.

History:

This man presented for his skin examination .He was not aware of this pigmented lesion.He has no family or personal history of skin cancer.He has skin phototype II-III.

Regression structures may be found in melanoma and Clark naevus.In such instance the differentiation between these lesions may be difficult not only dermoscopically but also histopathologically . 

Histopathology:  Junctional dysplastic naevus exhibiting moderate dysplasia.Appearances fall short of in-situ melanoma.

This is an example of a lesion which has the same clinical appearance of all the other lesions from a distance,but at a closer look is different from the others.['Little Red Riding Hood' sign]  IDS.