Clinical evaluation of endoscopic ultrasonography (EUS) in the diagnosis of gastric disease.

ラジアルセクタ式超音波内視鏡（EUS）を，15例の胃疾患患者に用い，その有用性を検討した。胃癌の深達度診断は併存潰瘍を有するm癌の1例をsm癌とした以外は，いずれも正診であり，胃癌の深達度診断にEUSが有用であることが示唆された。その他，胃粘膜下腫瘍の占拠部位や発育様式の診断や壁外性圧排との鑑別など胃疾患の診断にEUSの有用性が示唆され，文献的考察を加えて報告した。We performed EUS in seven cases with gastric cancer, one with gastric malignant lymphoma, two with submucosal tumor of the stomach (SMT), two with tumourous compression by extra-gastric organs and three with others. Except one case with early gastric cancer, the depth of cancerous lnvasion was correct1y diagnosed by EUS. It was posible to detect which layer had SMT in the 5 layer strcture of the gastric wall by EUS and it was helpful in determination of histological origin of SMT. Furthermore EUS was able to make the differential diagnosis between SMT and tumourous compression by extra gastric organ. Our result showed that EUS was a useful procedure in the diagnosis of gastric diseases