Applicability of the Proposed Japanese Model for the Classification of Gastric Cancer Location: The “PROTRADIST” Retrospective Study

ABSTRACTBackground: The extension of lymphadenectomy for surgical treatment of gastric cancer remains discordant among European and Japanese surgeons. Kinami et al. (Kinami S, Fujimura T, Ojima E, et al. PTD classification: proposal for a new classification of gastric cancer location based on physiological lymphatic flow. Int. J. Clin. Oncol. 2008;13:320–329) proposed a new experimental classification, the “Proximal zone, Transitional zone, Distal zone” (PTD) classification, based on the physiological lymphatic flow of gastric cancer site. The aim of the present retrospective study is to assess the applicability of PTD Japanese model in gastric cancer patients of our Western surgical department. Methods: Two groups of patients with histologically documented adenocarcinoma of the stomach were retrospectively obtained: In the first group were categorized 89 patients with T1a–T1b tumor invasion; and in the second group were 157 patients with T2–T3 category. The data collected were then categorized according ...