[Comment] Gastric cancer surgery: the importance of technique and not only the extent of lymph node dissection

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Radical gastrectomy with extended lymph node dissection is standard for gastric cancer.1,2 The extent of lymph node dissection is defined as D1 for the perigastric area, whereas D2 lymph node dissection comprises tissue surrounding the next level of lymphatic vessels, including the hepatic artery proper, common hepatic artery, splenic vessels, and splenic hilum.1 Radical D2-lymphadenectomy for advanced gastric cancer had previously been accepted as the surgical standard in Japan and Korea, and the generalisability of this technique was confirmed by a Dutch trial.

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