| Determine feasibility and ability to accrue to a non-operative approach with definitive chemotherapy, concurrent chemoradiation, and selective surgical salvage. Determine standard criteria for salvage therapy with CT scans (mandatory), serial endoscopy and ultrasound and serial PET scans (optional but encouraged). Estimate the overall survival of this selective surgical strategy: other efficacy outcomes, such as disease-free survival, also will be estimated. Assess the tolerance in patients receiving selective surgical salvage. Collect tissue specimens for the future purpose of associating molecular markers with response and treatment efficacy outcomes. |