Arms 1 and 2: Cisplatin (CDDP) 100 mg/m2 over 20-30 minutes on days 1, 22, and 43. In arm 2 Cisplatin (CDDP)100 mg/m2 will be given to patients with multiple lymphnodal involvement, extranodal spread, positive resection margins, perineural involvement or vascular embolization.