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Updated: Jul 7, 2026

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Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Biliary cystadenoma revealed by obstructive jaundice.
M Gonzalez1, P Majno, S Terraz
1Department of Transplantation and Visceral Surgery, University Hospital Geneva, Geneva 14, Switzerland. michel.gonzalez6@gmail.com
Summary
Biliary cystadenoma, a rare liver tumor, can mimic benign cysts. This case highlights a mucinous cystadenoma causing obstructive jaundice due to its extension into bile ducts.
Area of Science:
- Hepatobiliary surgery
- Gastroenterology
- Surgical pathology
Background:
- Biliary cystadenoma is a rare cystic neoplasm of the liver, often presenting diagnostic challenges in differentiating it from other benign hepatic cystic lesions.
- Accurate preoperative diagnosis is crucial for appropriate surgical management and patient outcomes.
Observation:
- A 32-year-old woman presented with obstructive jaundice, a clinical sign of biliary obstruction.
- Imaging revealed a large cystic lesion in the left hepatic lobe, compressing the biliary tree.
Findings:
- Surgical resection confirmed a mucinous biliary cystadenoma.
- The tumor exhibited a pedunculated extension into the left hepatic duct and common bile duct, explaining the obstructive jaundice.
Implications:
- This case underscores the importance of considering rare entities like biliary cystadenoma in the differential diagnosis of complex liver cysts.
- Understanding the anatomical variations and potential for biliary ductal extension is vital for surgical planning and successful treatment of these rare tumors.
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