SAN DIEGO (EGMN) - The chances of a patient's developing multiple primary melanomas over a lifetime is a real phenomenon, with an incidence ranging from 2% to 8% among patients who have had a first melanoma, or an average of about 5%."That's significantly higher than if we apply the risk of melanoma to all fair-skinned people in the country," Dr. William M. Burrows said at a melanoma update sponsored by the Scripps Clinic.Of patients who develop additional melanomas, about 80% develop two in addition...