“…In the literature "hazardous foreign bodies" are de ned as, 1) foreign bodies with sharp edges that can easily penetrate the esophageal wall and cause deep cervical infection, mediastinitis or damage major vessels, resulting in massive bleeding; 2) foreign bodies with large and irregular edges that can compress the esophageal wall, leading to ischemia, edema, erosion, and ulcers; and 3) foreign bodies that may stay in the esophagus for a long time and cause local soft tissue edema [3]. Serious complications with high mortality, such as esophageal perforation, respiratory tract obstruction, tracheoesophageal stula, vascular injuries (eg, aortoesophageal stula), retropharyngeal abscess, mediastinitis, pericarditis or vocal cord paralysis may develop as a result of ingestion of such foreign bodies [4]. Morbidity and mortality are relatively high, especially in the case of esophageal perforation.…”