My husband was diagnosed with melanoma in Aug 2007. Original spot (a mole on his back that he had his whole life started to change) was 1.3 mm Breslow's thickness with no ulceration present - Clark's Level III. He had a sentinel node biopsy and wide excision in Sept. Two nodes were removed under his arm and one from the groin. Wide excision came back all clear - as did both lymph nodes under the arm. The lymph node in the groin, however, came back posititive - scattered cancer cells present - .4 mm largest concentration. In early Oct he had a PET scan that came back all clear. Next came a total removal of all lymph nodes in the groin area. No further cancer cells were found. Our surgeon said that interferon was an option. Is there anyone out there with a similar case and what have you done?