Although the detection of recurred lesions following curative gastrectomy in patients with gastric cancer has increased as the use of computed tomography (CT) has grown, early or small tumor recurrence can be difficult to identify or correctly diagnose using CT. Therefore, in this study, we retrospectively reviewed cases in which tumor recurrence was missed upon analysis of the follow up CT after gastrectomy. The characteristics of the lesions in various locations of the abdomen and pelvis are illustrated and discussed.