A Clinicopathological Study of Early Gastric Cancers from View Point of Invasion

Hiroo Oshita, Sengai Tanaka, Takao Ito

Department of Surgery, Gifu City Hospital

We clinicaly and pathologically investigated, by degree of depth of invasion, 231 cases of early gastric cancer undergoing curative resection. The details of which are as follows. 1) There were 128 cases (55.4%) of mucosal cancer and 103 cases (44.6%) of submucosal cancer. 2) Metastasis to lympn nodes was found in 9.5% of the total cases (1.6% of m cancer cases and 19.4% of sm cancer cases). 3) The larger the tumor diameter, the more frequent was the occurrence of lymph node metastasis. However, in patients with tumor less than 1.0 cm in diameter, no lymph node metastasis was seen. 4) For patients with sm cancer positive for lymph node metastasis, the 5- and l0-year survival rate was 87.6%, which compared unfavorably with the rates of 97.0% and 92.7% for negative cases. 5) At this time, we consider that dissection of lymph nodes in the second group for even an early gastric cancer should be conducted.

Key words
early gastric cancer, degree of depth of invasion, lymph node metastasis

Reprint requests
Hiroo Oshita Department of Surgery, Gifu City Hospital
7-1 Kashimacho, Gifu, 500 JAPAN

Accepted
December 13, 1989

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