Diagnostic Test Accuracy of Cytosponge-Trefoil Factor 3 for Barrett Esophagus: A Systemic Review and Meta Analysis.

Introduction: Barrett's esophagus (BE), characterized by the replacement of normal esophageal squamous epithelium with columnar metaplasia, poses a risk of progression to esophageal adenocarcinoma. Early detection is essential to prevent malignant transformation. The Cytosponge, a novel, minimally invasive cell collection device, has been proposed as a diagnostic tool for BE by identifying trefoil factor 3 (TFF3)-positive cells.