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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:
- 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
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