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Extrahepatic Mucinous Biliary Cystadenoma: A Case Report
Bandar R Bakhurji1, Shymaa A Basager1, Amani M Hakami1
1Family and Community Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAU.
Cureus
|October 28, 2020
Summary
Extrahepatic biliary cysts are rare, with mucinous cystadenoma being extremely uncommon. This case highlights a middle-aged woman with obstructive jaundice due to a common bile duct cystadenoma, emphasizing its consideration in differential diagnoses.
Area of Science:
- Gastroenterology and Hepatology
- Surgical Oncology
Background:
- Biliary cysts are dilations of the biliary ductal system, either congenital or acquired.
- Extrahepatic biliary cysts are rare, accounting for less than 10% of all biliary cysts.
- Extrahepatic mucinous cystadenoma is an exceptionally rare condition, with fewer than 100 cases documented.
Observation:
- A middle-aged woman presented with clinical signs of cholestatic jaundice.
- Laboratory results indicated elevated bilirubin and alkaline phosphatase levels.
- Imaging revealed a cystic lesion in the common bile duct causing obstruction.
Findings:
- Surgical exploration identified a 2.0 × 2.0 cm cystic lesion in the common bile duct.
- The lesion caused significant obstructive effects on the biliary ducts.
- Histopathological examination confirmed the diagnosis of mucinous biliary cystadenoma.
Implications:
- Mucinous biliary cystadenoma, though rare, is a critical differential diagnosis for cholestatic jaundice.
- Consideration is particularly important in patients without a history of gallstones or cholecystectomy.
- This case underscores the importance of thorough investigation for rare biliary pathologies.
