Synopsis
Differentiate intrahepatic, perihilar, distal bile-duct and gallbladder cancers, control cholangitis, obtain adequate staging and tissue by a surgically safe route and coordinate resection, drainage and biomarker-directed systemic care.
- Painless cholestatic jaundice is a pivotal clue in Cholangiocarcinoma and gallbladder cancer: Extrahepatic obstruction causes jaundice, pruritus, dark urine and pale stool, often before a mass is palpable.
- Immediate priority in unstable Cholangiocarcinoma and gallbladder cancer: Use sepsis care, take cultures, give intravenous antibiotics and arrange urgent endoscopic or percutaneous biliary drainage with hepatobiliary expertise, selecting ducts deliberately in perihilar obstruction.
- Contrast CT chest, abdomen and pelvis is used early to define primary anatomy, vascular involvement, nodes, metastases and broad resectability. Use before unplanned drainage or biopsy where stable; perihilar disease needs expert review of future liver remnant and ductal anatomy.
- MRI with MRCP refines the next decision because this is especially valuable for perihilar tumours and avoids losing key anatomical information after stent artefact or decompression.
- Define anatomy before intervention: Obtain contrast CT and MRI/MRCP before stenting when feasible, then review ducts, vessels, lobar atrophy, future remnant and metastases in the hepatobiliary MDT.
- Control infected or clinically important obstruction: Drain the infected and intended functional liver segments rather than maximising the number of stents without a map.
- A major avoidable harm is recurrent cholangitis; Incomplete or occluded drainage allows infected bile to recur, causing sepsis and interrupting cancer treatment.
- A common diagnostic trap is benign biliary stricture: Surgery, pancreatitis, ischaemia and inflammatory disease can narrow ducts; persistent or progressive stricture requires repeated specialist sampling.