Fig. 7
From: Esophageal emergencies: another important cause of acute chest pain
Esophageal obstruction with food bolus impaction (a) and therapeutic foreign body/prosthesis (b). a An 83-year-old demented male with chest pain during meal. Sagittal CT image shows a large chunk of food impaction in the mid to lower esophagus (dotted area). The upper esophagus is mildly dilated with an air-fluid level. b A 71-year-old male with history of laryngectomy for laryngeal cancer with a tracheoesophageal voice prosthesis which may mimic a foreign body. Axial CT image shows a small tubular shaped radiopaque device (arrow) between the tracheostomy (arrowhead) and the upper esophagus (asterisk). There is a tracheostomy defect and associated large skin defect anteriorly (bidirectional arrow)