Studies on ultrasonic diagnosis of pancreatic cancer
Miyashita, T.
Nihon Geka Hokan. Archiv für Japanische Chirurgie 56(4): 345-364
1987
ISSN/ISBN: 0003-9152 PMID: 3328571 Document Number: 293909
The diagnostic role of ultrasound for pancreatic cancer was investigated especially from surgical point of view. In most cases, pancreatic cancer was presented as a relatively hypoechic and inhomogeneous area with an irregular margin. Water bath scan of surgically resected specimens showed that the size of tumors measured on the sonograms tended to be 0.5-2.0 cm smaller than the macroscopic size measured on the resected specimens. Conventional transcutaneous ultrasonograms of pancreatic cancer were also analyzed and the importance of abnormal findings on the pancreatic duct or the common bile duct was emphasized as a clue to early detection of pancreatic cancer. Ultrasonic portograms in pancreatic cancer were classified into three types and compared with angiographic portograms, and then with intraoperative portal findings. As the result, ultrasonography proved to be highly sensitive in the diagnosis of portal invasion. Intra-operative ultrasonography was performed during surgery for pancreatic cancer and its usefulness was also confirmed.