Hi – I've had 2 primaries – both nodular. The first was on my shoulder and invasive — amelanotic (just flesh colored – I'm lucky to have found it), raised and seemed to develop overnight. The second was discovered 3 months later when I was "shopping" for a mel specialist. It was a pigmented mole on my back, and was shallower than the first mel. Since then my problematic moles have been on both legs, but were categorized as merely atypical. I hope this helps.
