Dermoscopy
A minute pigmented skin lesion

Every melanoma begins its life as a minute lesion - smaller than can be seen by the naked eye.

An understanding of embryonic lesions has enabled us to diagnose melanomas at much earlier stages. The

Professor Cliff Rosendahl5th December 2018

Radial lines and pseudopods arranged segmentally at the periphery of a pigmented skin lesion are very reliable indicators of malignancy. 
With respect to lines radial, the differential diagnosis is