Multimodal imaging findings of intrahepatic cholangiocarcinoma arising from a biliary adenofibroma: a case report with radiological-pathological correlation.

"Declarations Competing interestsThe authors have no relevant financial or non-financial interests to disclose. Ethical approvalThis study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Research Ethics Committee of The University of Tokyo (Ethics approval number: 2561-(22)). Consent to participate and publishThe requirement of informed patient consent was waived in the present case report in accordance with the opt-out method used at our institution. Competing interests The authors have no relevant financial or non-financial interests to disclose."

"Funding Open access funding provided by The University of Tokyo. The authors did not receive support from any organization for the submitted work."