EUS in the assessment of ampullary lesions prior to endoscopic resection

Endoscopic ultrasound (EUS) has an important role in the staging of ampullary lesions. It affords excellent T staging when compared to cross sectional imaging. Several algorithms for the use of EUS in the assessment of ampullary lesions exist. This review details the comparison of different imaging modalities, impact of biliary stenting, cost-effectiveness and role of EUS in the assessment of ampullary lesions prior to endoscopic resection.