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  • Title: Outruling cholangiocarcinoma in patients with primary sclerosing cholangitis wait-listed for liver transplantation: A report on the Irish national experience.
    Author: Duggan WP, Brosnan C, Christodoulides N, Nolan N, Kambakamba P, Gallagher TK.
    Journal: Surgeon; 2023 Apr; 21(2):e83-e88. PubMed ID: 35680491.
    Abstract:
    BACKGROUND: The presence of diffuse biliary stricturing in Primary Sclerosing Cholangitis (PSC) makes the diagnosis of early Cholangiocarcinoma (CCA) in this context difficult. A finding of incidental CCA on liver explant is associated with poor oncological outcomes, despite this; there remains no international consensus on how best to outrule CCA in this group ahead of transplantation. The objectives of this study were to report the Irish incidence of incidental CCA in individuals with PSC undergoing liver transplantation, and to critically evaluate the accuracy of diagnostic modalities in outruling CCA in our wait-listed PSC cohort. METHODS: We conducted a retrospective analysis of our prospectively maintained database, which included all PSC patients wait-listed for liver transplant in Ireland. RESULTS: 4.41% of patients (n = 3) were found to have an incidental finding of CCA on liver explant. Despite only being performed in 35.06% of wait-listed PSC patients (n = 27), Endoscopic Retrograde Cholangiopancreatogram (ERCP) with brush cytology was found to be the most effective tool in correctly outruling CCA in this context; associated with a specificity of 96.15%. CONCLUSION: Our findings support a future role for routine surveillance of PSC patients awaiting liver transplantation; however further research is required in order to identify which investigative modalities are of optimal diagnostic utility in this specific context.
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