As the accuracy of preoperative diagnosis
of nodal metastases find more was relatively low, we should at present perform surgery with adequate lymphadenectomy for undifferentiated type EGC. Acknowledgements We are extremely grateful to all the patients. We would like to be most grateful to clinical staff, Dr Noriko Odaka, and Dr Hitoshi Satodate.. References 1. Parkin DM, Bray F, Ferlay J, Pisani P: Global cancer statistics, 2002. CA Cancer J Clin 2005,55(2):74–108.PubMedCrossRef 2. Moreaux J, Bougaran J: Early gastric cancer. A 25-year surgical experience. Annals of surgery 1993,217(4):347–355.PubMedCrossRef 3. Sobin LH, Gospodarowicz MK, Wittekind C: TNM classification of malignant tumors. 7th edition. Oxford: Wiley-Blackwell; 2010. 4. Japanese classification of gastric carcinoma: 3rd English edition Gastric Cancer 2011,14(2):101–112. 5. Gotoda T, Yanagisawa A, Sasako M, Ono H, Nakanishi Y, Shimoda T, Kato Y: Incidence of lymph node metastasis from early gastric cancer: estimation with a large number of cases at two large centers. Gastric Cancer 2000,3(4):219–225.PubMedCrossRef 6. Yamao T, Shirao K, Ono H, Kondo H, Saito D, Yamaguchi H, Sasako M, Sano T, Ochiai A, Yoshida S:
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