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Isolated ipsilateral groin recurrences in patients with SN macrometastases > 2 mm. Per protocol analysis, radiotherapy versus IFL (HR, 3.2; 95% CI, 1.2 to 8.3). Six patients who received no treatment were excluded from this analysis. HR, hazard ratio; IFL, inguinofemoral lymphadenectomy; RT, radiation therapy; SN, sentinel node.
