早期胃癌の超音波内視鏡診断

Abstract

The ability of endoscopic ultrasonography to diagnose the depth of invasion was investigated in 34 patients with early gastric cancer. The depth of cancer invasion was classified as the mucosa(m), the submucosa(sm), muscularis propria(mp) and subserosa and serosa. The results obtained were as follows; 1) The overall diagnostic accuracy was 62% in all 34 cases ; 60% in m cancers and 67% in sm cancers, respectively. 2) The diagnostic accuracy of cancer invasion was markedly low in Ⅲ type early gastrlc cancer. 3) The diagnostic accuracy of cancer invasion was lower in cases with fibrosis ac- companying peptic ulcer or ulcer scar than in cases without them.