Biliary Cystic Neoplasms and Imaging Techniques

Biliary cystic neoplasms encompass a spectrum of rare, cyst-forming tumours of the liver and biliary tree, including mucinous cystic neoplasms and biliary cystadenomas. These lesions often present as multiloculated masses with internal septations and loculations. Clinical manifestations range from incidental detection on routine imaging to abdominal pain, obstructive jaundice and palpable masses. Accurate characterisation relies on a combination of imaging modalities: ultrasonography (US) can detect fluid‐filled compartments and septal echoes; contrast‐enhanced computed tomography (CT) delineates cyst wall enhancement, septal thickness and mural nodules; magnetic resonance imaging (MRI), particularly magnetic resonance cholangiopancreatography (MRCP), provides superior soft-tissue contrast and detailed visualisation of biliary ductal anatomy; endoscopic ultrasound (EUS) offers high-resolution assessment of internal architecture. Tumour markers such as CA19-9 may be elevated but are not definitive. Surgical excision remains the standard of care, with radical resection linked to low recurrence rates. Recent advances in image-guided diagnostics and predictive nomograms are improving preoperative differentiation between neoplastic and benign cysts, thereby informing optimal management strategies worldwide.

Research from Nature Portfolio

Recent work has reported a paradigm shift in the diagnosis and management of mucinous cystic neoplasms of the liver based on a retrospective cohort of seven patients treated between 2016 and 2023. Preoperative assessment demonstrated consistently negative α-fetoprotein levels and occasional CA19-9 elevation. Imaging with contrast CT and MRI identified multiloculated cystic lesions, though initial misclassification occurred. All patients underwent surgical resection with minimal morbidity. Follow-up revealed excellent survival outcomes except for one case of invasive carcinoma with early recurrence. This study highlights the combined value of tumour markers and high-resolution imaging in reducing misdiagnosis and supports early radical excision to optimise long-term prognosis.

Biliary Cystic Neoplasms and Imaging Techniques publication trend

The graph below shows the total number of articles in biliary cystic neoplasms and imaging techniques across all publications each year (not limited to Nature Index journals).

Technical terms

Mucinous cystic neoplasm: A cyst-forming epithelial tumour containing mucin and ovarian-type stroma, with premalignant potential.

Biliary cystadenoma: A benign, multiloculated cystic lesion originating from biliary epithelium, often with internal septations.

Septation: Fibrous or epithelial partitions dividing a cyst into separate compartments.

Loculation: Formation of multiple fluid-filled pockets within a cystic mass.

CA19-9: A serum carbohydrate antigen frequently elevated in biliary and pancreatic neoplasms but lacking diagnostic specificity.

Magnetic resonance cholangiopancreatography (MRCP): A non-invasive MRI technique optimised for visualising the biliary and pancreatic ductal systems.

Endoscopic ultrasound (EUS): A procedure combining endoscopy and ultrasonography to produce detailed images of gastrointestinal and biliary lesions.

References

1. A paradigm shift in diagnosis and treatment innovation for mucinous cystic neoplasms of the liver. Scientific Reports (2024).
2. Obstructive Jaundice Induced by Hilar Mucinous Cystic Neoplasm of the Liver: A Rare Case Report and Literature Review. Current Oncology (2025).
3. Differentiation and management of hepatobiliary mucinous cystic neoplasms: a single centre experience for 8 years. BMC Surgery (2021).
4. Cystic liver lesions: a pictorial review. Insights into Imaging (2022).