BOSTON (EGMN) - Lesion darkness would make a better criterion for identifying early melanomas than the 6-mm diameter cutoff in the ABCDE criteria currently used by dermatologists and patients, according to Dr. Stuart Goldsmith."It's recognized that all melanomas start as a single cell or a few cells. So microscopically, they're already cancer, but we're not even telling patients to look for small lesions," he said."If we were doing okay [in terms of mortality], then it wouldn't matter. The fact is...