Some Aspects of Limited Operation and Endoscopic Mucosal Resection for Early Gastric Cancer -Special Reference to the Minute Cancer in Multiple Early Gastric Cancer-

Kuniyoshi Arai, Masatsugu Kitamura, Kaoru Miyashita

Department of Surgery, Tokyo Metropolitan Komagome Hospital

Sixty cases (86 lesions) of minute cancer among cases of multiple early gastric cancer were analyzed, and the problems of limited operation (LOP) and endoscopic mucosal resection (EMR) for early gastric cancer were examined. The frequency of the cases with multiple lesions or minute cancer (less than 5 mm in diameter) among the cases of early gastric cancer, which has recently been increasing, were 18.9% and 7.8% respectively. Clinicopathological features of minute cancers were the high frequency of IIb (61.6%), well-differentiated adenocarcinoma (80.2%) and mucosal cancer (98.8%). Although many lesions were often found near the main lesion, 5.8% of these were more than 8 cm away from it. Furthermore, there were 35 cases (58.3%) in which all the lesions of except the main lesion were minute cancers. In conclusion, LOP or EMR should be carefully performed taking into consideration the possible existence of minute cancers.

Key words
multiple early gastric cancer, minute cancer, endoscopic mucosal resection, limited operation

Reprint requests
Kuniyoshi Arai Department of Surgery, Tokyo Metropolitan Komagome Hospital
3-18-22 Honkomagome, Bunkyo-ku, Tokyo, 113 JAPAN

Accepted
February 12, 1992

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