| Theme |
Management of Cystic Diseases of the Pancreas |
| Title |
Intraductal Ultrasonography for Diagnosing Branch Duct Type Mucin-Producing Pancreatic Tumors |
| Author |
Akihiro Itoh |
Second Department of Internal Medicine, Nagoya University School of Medicine |
| Author |
Hidemi Goto |
Department of Endoscopy, Nagoya University School of Medicine |
| Author |
Yoshiki Hirooka |
Department of Endoscopy, Nagoya University School of Medicine |
| Author |
Senju Hashimoto |
Second Department of Internal Medicine, Nagoya University School of Medicine |
| Author |
Katsushi Niwa |
Second Department of Internal Medicine, Nagoya University School of Medicine |
| Author |
Hideki Ishikawa |
Second Department of Internal Medicine, Nagoya University School of Medicine |
| Author |
Naoto Okada |
Second Department of Internal Medicine, Nagoya University School of Medicine |
| [ Summary ] |
The purpose of this study is to examine the usefulness of intraductal ultrasonography (IDUS) in diagnosing mucin-producing pancreatic tumors. The subjects were 80 patients with resected branch duct type tumors who had also undergone endoscopic ultrasonography (EUS). The IDUS probe (Aloka Co. Ltd.) has a diameter of 6 French with a 20 MHz radial scan transducer. We inserted it into the biopsy channel of a duodenoscope and via the duodenal major papilla into the MPD, after endoscopic pancreatography. Fifty-four out of 60 (90%) cases displaying mural nodules with IDUS and were considered to be carcinomas or adenomas. Forty-two out of 48 (87.5%) cases displaying mural nodules with EUS were considered to be carcinomas or adenomas. On comparing IDUS and EUS in relation to the rates of detecting nodules, in 15 tumors, nodules were detected only with IDUS. In conclusion, IDUS is very useful for diagnosis in cases associated with the mucin-producing pancreatic tumors. Further development of the IDUS system will improve our diagnostic abilities. |