{Reference Type}: Case Reports {Title}: The Chest Wall Mass of Unknown Origin: A Rare Presentation of Esophageal Adenocarcinoma. {Author}: Brandon A;Singh KB;Sonnier W; {Journal}: Cureus {Volume}: 16 {Issue}: 4 {Year}: 2024 Apr 暂无{DOI}: 10.7759/cureus.59209 {Abstract}: A chest wall mass can result from a diversity of underlying disease processes ranging from benign to a site of distant metastasis. The chest wall is a rare site for esophageal adenocarcinoma (EAC) metastasis. Delayed diagnosis can occur when presenting symptoms are not typical of esophageal pathology, and advanced-stage EAC has a high morbidity and low survival rates. Our case demonstrates a rare and unusual presentation of EAC with a poor outcome due to delayed diagnosis.