{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T18:40:16Z","timestamp":1784745616083,"version":"3.55.0"},"reference-count":15,"publisher":"Oxford University Press (OUP)","issue":"7","license":[{"start":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T00:00:00Z","timestamp":1784678400000},"content-version":"vor","delay-in-days":21,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Perihilar cholangiocarcinoma (pCCA), originating from the second-order bile ducts and extending to the cystic duct insertion, is the most common cholangiocarcinoma subtype and carries a dismal prognosis. It is typically characterized by obstructive jaundice and elevated serum carbohydrate antigen 19-9 (CA19-9); however, these features significantly overlap with those of benign biliary diseases. While endoscopic retrograde cholangiopancreatography-guided tissue sampling is crucial for diagnosis, its sensitivity remains suboptimal. Consequently, up to 15% of preoperatively suspected pCCA cases are confirmed as benign strictures postoperatively. Given the close association between choledocholithiasis and pCCA, distinguishing malignancy from stone-induced inflammatory disease remains a significant diagnostic challenge. Herein, we report a rare case of chronic cholangitis mimicking pCCA, ultimately attributed to calculi containing a retained foreign body.<\/jats:p>","DOI":"10.1093\/jscr\/rjag625","type":"journal-article","created":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T17:56:21Z","timestamp":1784742981000},"source":"Crossref","is-referenced-by-count":0,"title":["A case of chronic cholangitis caused by calculi with foreign matter mimicking perihilar cholangiocarcinoma"],"prefix":"10.1093","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0505-6009","authenticated-orcid":false,"given":"Songming","family":"Ding","sequence":"first","affiliation":[{"name":"Division of Hepatobiliary and Pancreatic Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University, Shulan International Medical College , Hangzhou ,","place":["P.R. China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Di","family":"Wang","sequence":"additional","affiliation":[{"name":"Division of Hepatobiliary and Pancreatic Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University, Shulan International Medical College , Hangzhou ,","place":["P.R. China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiting","family":"Hu","sequence":"additional","affiliation":[{"name":"Division of Hepatobiliary and Pancreatic Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University, Shulan International Medical College , Hangzhou ,","place":["P.R. China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shusen","family":"Zheng","sequence":"additional","affiliation":[{"name":"Division of Hepatobiliary and Pancreatic Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University, Shulan International Medical College , Hangzhou ,","place":["P.R. China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiyong","family":"Li","sequence":"additional","affiliation":[{"name":"Division of Hepatobiliary and Pancreatic Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University, Shulan International Medical College , Hangzhou ,","place":["P.R. China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiqing","family":"Luo","sequence":"additional","affiliation":[{"name":"Division of Hepatobiliary and Pancreatic Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University, Shulan International Medical College , Hangzhou ,","place":["P.R. China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,7,22]]},"reference":[{"key":"2026072213561330900_ref1","doi-asserted-by":"publisher","first-page":"481","DOI":"10.1586\/egh.12.20","article-title":"Management of perihilar cholangiocarcinoma in the era of multimodal therapy","volume":"6","author":"Valero","year":"2012","journal-title":"Expert Rev Gastroenterol Hepatol"},{"key":"2026072213561330900_ref2","doi-asserted-by":"publisher","first-page":"e0304838","DOI":"10.1371\/journal.pone.0304838","article-title":"Clinical features and prediction of long-term survival after surgery for perihilar cholangiocarcinoma","volume":"19","author":"Mantas","year":"2024","journal-title":"PloS One"},{"key":"2026072213561330900_ref3","doi-asserted-by":"publisher","first-page":"559","DOI":"10.4254\/wjh.v6.i8.559","article-title":"Palliation: hilar cholangiocarcinoma","volume":"6","author":"Goenka","year":"2014","journal-title":"World J 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