One-dimensional and 2-dimensional tumor size measurement for prediction of lymph node metastasis in differentiated early gastric cancer with minute submucosal invasion

One- and 2-dimensional cutoff values of 2.9 cm and 8.3 cm2 might be suitable for patients at high risk of postoperative morbidity and mortality. Two-dimensional tumor size is an acceptable measurement method for estimating the risk of LN metastasis.