- Stage T2N0M0, T3N0M0, T1-3N1M0, T1-3N0-1M1a as determined by imaging studies and endoscopic ultrasound staging. M1a disease (celiac nodal metastasis) is permitted if other eligibility criteria are met. Any lesion suspicious for metastasis should biopsied (either by tru cut or fine needle aspiration) to prove eligibility.