The authors describe the main applications of endoscopic ultrasonography for the management of diseases of the gallbladder and biliary ductal system. In addition, some ultrasound findings of benign and malignant diseases affecting these structures of the digestive tract are presented, emphasizing the diagnostic importance of endoscopic ultrasonography.
Ultrasonography; Endoscopic ultrasonography; Digestive tract; Gallbladder; Biliary system