Pathologic Findings Affecting the Diagnostic Accuracy in Determining the Depth of Invasion of Gastric Cancer by Endoscopic Ultrasonography (EUS) / 대한소화기내시경학회지

Endoscopic ultrasonography(EUS) has been used in assessing the depth of cancer invasion of the stomach. However, there are pathologic findings coexisting cancers which are unable to be detected by EUS resulting in mis-staging preoperatively. To find out the causes of mis-staging in determining the depth of cancer invasion, we analysed the pathologic findings of mis-staged cases of gastric cancer by EUS. (continue...)

Localization of an Insulinoma by Endoscopic Ultrasonography / 대한소화기내시경학회지

A 45-year-old woman with recurrent disturbances of consciousness for 4 years with hypoglycemia was hospitalized with the clinical suspicion of an insulinoma. The findings of transabdominal ultrasonography, computed tomography and angiography were negative. Transhepatic venous sampling for pancreatic hormone assay showed sudden step-up of serum level of insulin in the venous blood from the tail of the pancreas. Finally, an endoscopic ultrasonographic examination established with certainty the origin of the tumor from the tail of the pancreas, which was subsequently confirmed at operation. In conclusion, endoscopic ultrasonography is a useful and valuable procedure for the localization of insulinoma especially in patient with insulinoma of the pancreas that cannot be localized by conventional methods.