{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T13:05:13Z","timestamp":1760101513495,"version":"3.41.0"},"reference-count":22,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2024,12,26]],"date-time":"2024-12-26T00:00:00Z","timestamp":1735171200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Digestive Endoscopy"],"published-print":{"date-parts":[[2025,6]]},"abstract":"<jats:sec><jats:title>Objectives<\/jats:title><jats:p>This study aimed to investigate the diagnostic performance and safety of endoscopic ultrasound\u2010guided tissue acquisition (EUS\u2010TA) for perivascular soft\u2010tissue cuffing (PSTC).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This single\u2010center, retrospective study evaluated patients in whom EUS\u2010TA was performed for PSTC in pancreatic or bile duct cancer lesions between October 2017 and March 2024. PSTC was defined as a perivascular soft\u2010tissue area contiguous with nearby blood vessels from the suspected primary tumor. EUS\u2010TA procedures and outcomes, including technical success, diagnostic performance, adverse events, and comparison with contrast\u2010enhanced computed tomography (CECT), were analyzed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 1803 patients, 53 underwent EUS\u2010TA for PSTC. The sensitivity, specificity, and accuracy were 92.1%, 100%, and 92.5%, respectively. The technical success rate was 98.1% (52\/53). The adverse event rate was 1.9%. EUS\u2010TA for PSTC was significantly superior to CECT for PSTC in terms of diagnostic accuracy. Furthermore, the diagnostic performance and adverse event rates for EUS\u2010TA for PSTC were comparable to those for TA in solid tumors. Shorter puncture lengths were associated with lower accuracy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>EUS\u2010TA for PSTC in pancreatic or bile duct cancer demonstrates high diagnostic accuracy and a low rate of adverse events, showing superior diagnostic performance compared to CECT. These findings suggest that EUS\u2010TA for PSTC can be performed safely and is a clinically beneficial procedure. Despite the technical challenges, EUS\u2010TA for PSTC can influence clinical judgment and should be considered in skilled institutions for future patient treatment decisions. Prospective multicenter studies are warranted to further evaluate its efficacy and safety.<\/jats:p><\/jats:sec>","DOI":"10.1111\/den.14983","type":"journal-article","created":{"date-parts":[[2024,12,26]],"date-time":"2024-12-26T10:49:34Z","timestamp":1735210174000},"page":"695-703","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Clinical performance of endoscopic ultrasound\u2010guided tissue acquisition for perivascular soft\u2010tissue cuffing suspected to be extravascular migratory metastases of pancreatic or bile duct cancer (with video)"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2101-0163","authenticated-orcid":false,"given":"Kosuke","family":"Maehara","sequence":"first","affiliation":[{"name":"Department of Hepatobiliary and Pancreatic Oncology National Cancer Center Hospital  Tokyo Japan"},{"name":"Department of Gastroenterology Toranomon Hospital  Tokyo 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