Currently, it is well known that the rate of EGC has significantly increased every year. This study is a clinical review of 187 EGC cases from 995 cases of stomach cancer which were collected at the Department of Surgery, st. Mary's Hospital,
Catholic
university Medical Collage over the period from 1980 to 1993.
@ES the results are as follow:
@EN 1) The incidence of early gastric cancer was about 18.8% among total cases of stomach cancer(187 cases among 995 cases).
2) The peak incidence of age was 6th decade(31.1%), and male to female ratio also was 1.8 : 1).
3) The size of lesion was variable, 122(65.3%) cases less than 2 cm in diameter, 59(31.6%) caes between 1 cm and 2 cm and, 63(33.7%) cases less than 1cm.
4) Tumor locations were antrum(62.1%), body (36.8%), cardia(1.1%), and anterior(9.1%), posterior(7.0%), majr(3.7%), monor(79.7%), circumferencial portion(0.5%).
5) According to TNM classification, 161 cases(86.1%) were No group, 17 cases(9.1%) were N1 group, 9 cases(4.8%) were N2 group in stage. And mucosal cancer were 57 cases, submucosal cancer were 130 cases. In mucosal cancer only one case(17%) was
metastasised to N1 lymph node, and in submucosal cancer 16 cases(12.3%) to N1, 9 cases(6.9%) to N2 lymph node.
6) Operation procedures were subtotal gastrectomy(91.4%) and total gastrectomy(8.6%).
7) Overall five year survival rate was 91.9%, and five-year survival rate of mucosal cancer was 98%, submucosal cancer was 79%, total death cases were 15 cases.
8) Most common pathologic type was moderately differentiated adenocarcinoma.
The above finding showed that submucosal cancers tend to metastasise more frequently than mucosal cancers and survive shorter. Regional lymph node metastasis is more frequent in submucosal cancer than in mucosal cancer. And 5 year survival rate
is
longer in the patient with mucosal cancer. So more aggressive approach is needed in sumbucosal cancer. Localized surgical approach such as endoscopic mucosectomy or gastric wall resection can be perfored in mucosal cancer but more definite
anatomic
localization and staging is needed for adequate treatment.
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