Abstract
Endoscopic ultrasonography (EUS) have been performed in 15 cases suspected pancreatic cancer. EUS demonstrated pancreatic tumor as a low echoic lesion in 13 cases, and as a low and isoechoic lesion in a case of small pancreatic cancer. EUS also showed clearly the margin and the internal echo of the tumor in this case. In 10 of 14 cases (71%), the margin of pancreatic tumor was irregular, and in 11 cases (78%), the internal echo was even. Moreover, we compared diagnostic accuracy in various diagnostic methods for pancreatic cancer. Pancreatic cancer was correctly diagnosed in 11 of 12 cases (92%) by ERCP, in 9 of 15 cases (60%) by US, in 14 of 15 cases (93%) by EUS and in 8 of 12 cases (67%) by selective angiograhy. Therfore, it is concluded that EUS demonstrates pancreatic cancer as a low echoic lesion with irregular margin and even internal echo, and EUS can be one of the most useful diagnostic methods for pancreatic cancer.
