The mitotic figure is what I think you meant as 2-3mm? I may have the numbers wrong, but that could mean the cells are dividing and a SLNB might be done for that reason in addition to your depth. Where are you going for treatment? do they see a lot of melanoma and have experienced docs? You might want a second opinion on your pathology slides to be sure of this. Just to hopefully make you feel better, my melanoma was a .76 vertical growth phase, mitotic of greater than 1, ulcerated too and that was 23 years ago. Try to educate yourself and go to the Newly Diagnosed section above for more tips. Let us know how things go for you or if you have further questions.