Abstract

The treatment of multiple early gastric cancer was investigated through the clinicopathologic assessment of 61 cases of primary multiple early gastric cancer (82 accessory lesions) treated by surgical resection over a 15-year period. These cases accounted for 11.7% of all cases of early gastric cancer resected during the same period. The 61 patients included 48 men (mean age 64 years) and 13 women (61 years). Of the 82 accessory lesions, 41 (50%) were located in the same region as the main lesion. The most frequent combination of macroscopic types of the main lesion and the accessory lesion was depressed type/depressed type (28 cases). The main lesion was of the well differentiated type in 39 (64%) of the 61 cases; the accessory lesion was also well differentiated in 37 of the 39 cases. Of the 82 accessory lesions, 29 (35%) had been overlooked preoperatively; most of them were located in the middle third of the stomach and included 17 depressed and 10 flat lesions, most of which measured no more than 1 cm. Cases of multiple early gastric cancer are characterized by the predominance of male patients of advanced age (> 60 years), a combination of the same macroscopic type of the main and accessory lesions, and well differentiated carcinoma. Lymph node metastasis and vascular invasion are equally or less frequent than in cases of solitary early gastric cancer. The postoperative crude survival rate in patients with multiple gastric cancer is similar to that in those with solitary gastric cancer. Therefore we believe that multiple early gastric cancer does not require extended operative procedures. Endoscopic treatment may be indicated if each lesion fits the criteria for treatment and careful follow-up is ensured.

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