Perihilar Extrahepatic Cholangiocarcinoma With Typical and Atypical Manifestations: Diagnostic Resolution During Autopsy
Year: 2026
Type: article
Study design: Case Report
Abstract: Extrahepatic cholangiocarcinoma is a rare malignant neoplasm characterized by aggressive behavior and poor prognosis. It typically presents in the seventh to eighth decades of life, with a slight male predominance, and most commonly manifests with symptoms related to biliary obstruction; however, atypical clinical presentations may occur. We report the case of a 71-year-old man who presented with acute pancreatitis. Imaging studies failed to identify an underlying neoplasm, and the diagnosis was established only during the autopsy, which revealed a perihilar extrahepatic cholangiocarcinoma involving the proximal extrahepatic bile ducts, with extensive multiorgan infiltration. These findings accounted for the patient's atypical manifestations, including renal dysfunction and gastrointestinal bleeding, which were fully elucidated through postmortem examination. Extrahepatic cholangiocarcinoma represents a diagnostic challenge due to its nonspecific clinical features and its anatomically difficult location for biopsy, particularly when atypical manifestations predominate. This case highlights the value of autopsy in clarifying complex clinicopathologic correlations and provides observations regarding the role of immunohistochemistry in the diagnosis, prognostic assessment, and therapeutic management of these tumors.
Source: Cureus
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W7130504020