Transparent cap-assisted endoscopic retrieval of a sharp foreign body in the esophagus.

We herein report an 80-year-old woman who accidentally ingested a sharp foreign body. Transparent cap-assisted endoscopy disclosed an impacted press-through package (PTP) in the upper esophagus. The PTP was grasped by the forceps, inserted into the cap, and removed carefully without complication. Ingestion of sharp-pointed foreign bodies has serious risks of gastrointestinal perforation and hemorrhage; therefore, emergent endoscopic removal has been recommended. Transparent cap-assisted endoscopy is a simple, safe, and effective method with a shorter procedure time and clearer visual field compared with conventional endoscopy. We wish to emphasize that this method has advantages and a potential to be used for endoscopic retrieval of small sharp foreign bodies.