Abstract
Case 1 : The patient was a 70-year-old male. We performed an endoscopic submucosal dissection (ESD) for two gastric tube cancers (GTCs) , with both lesions being adenocarcinomas limited to the mucosal layer. Case 2 : The patient was a 76-year-old male. A GTC was found on the linear scar, which was suspected to be invading the submucosal layer ; we performed an ESD because of the surgical risk. The pathological diagnosis was an adenocarcinoma invading the submucosal layer, with lymphovascular invasion evident. Both cases were reconstructed through the posterior mediastinal route. We performed ESDs without complications, such as bleeding and perforation. The surgery for GTC, especially when reconstructed through the posterior-mediastinal route, was highly invasive. These cases illustrate that when a judgement needs to be made on a suitable treatment strategy for GTC with consideration for the risks of surgery, an ESD can be a useful and safe treatment modality.
