Endoscopic ultrasonography

Endoscopic ultrasonography

Endoscopic ultrasonography (EUS) utilises an endoscope with an ultrasound transducer at its tip, which allows the endoscopist to visualise the liver and biliary tree from within the stomach and duodenum ( Figure 71.8 ). It is accurate in detecting choledocholithiasis and in the diagnosis and staging of pancreatic and periampullary cancers. Biopsies can be taken from suspicious areas for cytological and histological analysis.