- Patients must have undergone a wide excision of the primary and, if >1mm in depth, have completed sentinel lymph node sampling or lymphadenectomy as is standard of practice. Patients must have confirmation of adequate surgical margins around the primary lesion (1 or 2 cm minimum, for primary lesions of 1-2 mm depth; 2 cm for primary lesions equal to or greater than 2 mm depth). When entering this study with recurrent regional lymph node disease, the patient must be enrolled no later than 90 days from the date of lymphadenectomy.