[A Case of Esophageal Perforation Caused by Metallic Stent Placement after Long-Term Chemotherapy for Advanced Gastric Cancer].

A 72-year-old man had been undergoing chemotherapy for advanced gastric cancer for over 4 years. He presented with dysphagia, and esophagogastroduodenoscopy(EGD)revealed esophageal stricture due to tumor growth. Subsequently, he underwent placement of a partially covered esophageal stent(HANAROSTENT® Esophagus, M. I. Tech, Seoul, Korea; length, 15 cm; diameter, 18 mm). Nine days after stent placement, the patient experienced acute back pain. Computed tomography revealed right-sided pneumothorax and empyema. EGD revealed an esophageal perforation in the uncovered portion of the stent on the oral side, and gastrografin fluoroscopy revealed leakage into the thoracic cavity. A covered esophageal stent (HANAROSTENT® Esophagus; length, 8 cm; diameter, 18 mm)was additionally placed on the oral side of the perforation; however, the empyema did not improve. The patient died due to the aggravation of advanced gastric cancer 2 months after placement of the first stent.