BERLIN (EGMN) - Look for a big jump in the number of melanoma patients diagnosed with stage III disease beginning early next year, when the new American Joint Committee on Cancer classification system takes effect.The new system endorses immunohistochemical detection of nodal metastases, and there will no longer be a lower limit for the definition of nodal disease, Dr. Claus Garbe explained at the annual congress of the European Academy of Dermatology and Venereology."In allowing micrometastases...