Description: This image demonstrates blue-grey dots, linear irregular vessels, more linear irregular vessels and inverse network.

History: This 57 year old gentleman had been referred to a plastic surgery clinic for definitive re-excision of a level 1 melanoma from his costal margin. I was asked to examine him for the presence of any other significant lesions. This lesion on his back was subjected to excision biopsy and histology revealed a level 2 superficial spreading melanoma arising in a lentiginous junctional dysplastic naevus. Breslow thickness was 0.4 mm.