WallFlex Esophageal Fully Covered (FC) Benign Anastomotic Stricture

Inclusion Criteria:Esophageal anastomotic stricture post esophagectomy (esophagogastric strictures). * Esophagectomy performed at the same institution where patient enrollment and follow-up is planned. * Two dilations to at least 16 mm in diameter since esophagectomy. * 1st dilation no more than 6 months post esophagectomy and 2nd dilation within 6 months of 1st dilation to 16mm. * Dysphagia score of 2 (ability to swallow semi-solid foods), 3 (ability to swallow liquids only) or 4 (unable to swallow liquids) at baseline. * Unable to pass a standard endoscope (approx. 9.8 mm diameter). * Age 18 years or older. * Willing and able to comply with the study procedures and provide Exclusion Criteria:Stricture within 2 cm of the upper esophageal sphincter. * Dysphagia related to motility disorder. * Non-anastomotic esophageal strictures. * Esophagocolonic strictures. * Planned adjuvant radiation therapy post esophagectomy. * Prior esophageal stent placements post esophagectomy. * Active erosive esophagitis. * Sensitivity to any components of the stent or delivery system. * Concurrent medical condition that would affect the investigator's ability to evaluate the patient's condition or could compromise patient safety. Participation in a clinical trial evaluating an investigational device within 3 months prior to enrollment in this study. * Stricture length \> 5 cm.