Imaging diagnosis of hepatic metastases of pancreatic carcinomas: Significance of transient wedge-shaped contrast enhancement mimicking arterioportal shunt

フォーマット:

論文

責任表示:

Gabata, Toshifumi ; Matsui, Osamu ; Terayama, Noboru ; Kobayashi, Satoshi ; Sanada, Junichiro

言語:

英語

出版情報:

Springer Verlag (Germany), 2008-07-01

著者名:

• Gabata, Toshifumi
• Matsui, Osamu
• Terayama, Noboru
• Kobayashi, Satoshi
• Sanada, Junichiro

掲載情報:

Abdominal Imaging

ISSN:

0942-8925      

巻:

33

通号:

4

開始ページ:

437

終了ページ:

443

バージョン:

author

概要:

金沢大学医薬保健研究域医学系<br />We aimed to evaluate the imaging findings of hepatic metastases from pancreatic cancers, especially wedge-shaped enhancement and its etiology. Dynamic CT and MR images were performed in 87 patients with liver metas … tases from pancreatic carcinomas, and CT during arterial portography (CTAP) and CT during hepatic arteriography (CTHA) in 51 patients. Liver metastases were multiple in 84 patients (97%) and solitary in only three (3%). In 44 of 87 patients (51%), all liver metastases showed ring-like enhancement compatible with metastatic adenocarcinomas on dynamic CT and/or dynamic MR imaging. In 37 patients, more than one metastatic lesion showed wedge-shaped contrast enhancement on dynamic CT, dynamic MRI and CTHA, and wedge-shaped perfusion defect on CTAP adjacent to metastatic tumors. Six patients showed multiple wedge-shaped enhancements, which were initially diagnosed as multiple arterioportal shunts (AP shunts). However, metastatic tumors appeared within the area of wedge-shaped enhancement and increased in size on follow-up CT and/or MR images. After all, 43 of 87 patients (49%) had AP shunt like contrast enhancement adjacent to liver metastases. Liver metastases from pancreatic carcinomas frequently show transient wedge-shaped enhancement, and should not be misdiagnosed as nontumorous arterioportal shunts. © 2007 Springer Science+Business Media, LLC. 続きを見る

URL:

http://hdl.handle.net/2297/9986