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[Advancements in endoscopic surgery for gastric and esophageal cancer].

Laparoscopic surgery against malignant tumors in upper gastrointestinal tract was introduced in Japan back in 1991. Now listed on Pubilc Health Insurance and treatment guidelines, cases are increasing significantly year by year. With patients' increased awareness for minimally invasive treatment and with advancements of related medical devices, it is being adapted to surgeries requiring more advanced lymph node dissection and difficult reconstruction. This paper explains current developments of laparoscopic D2 lymph node dissection and reconstruction for total gastrectomy in gastric cancer, and thoracoscopic esophagectomy in esophageal cancer.