Endoscopic submucosal dissection (ESD) for early gastric cancer has been rapidly spread because of its less invasiveness and functional preservation. But gastric perforation is one of the major complications. On the other hand, laparoscopic surgery is widely performed to reduce surgical invasion in the gastrointestinal surgery field. And for further reduction of surgical invasion, single incision laparoscopic surgery (SILS) comes to be performed.In this report, we present a case of late gastric perforation after ESD successfully treated with perforation closure and omental patch under SILS technique. The patient is 60's male. ESD was performed for early gastric cancer. The operation had been done uneventful. But the next day, the patient complained abdominal pain and he was diagnosed as late gastric perforation. Operation was performed with SILS technique. Post operative course was uneventful and he discharged on the 8th day after operation.
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