Update on the role of endoscopic ultrasound in chronic pancreatitis.

Chronic pancreatitis (CP) remains an important healthcare problem that adversely affects quality of life. Endoscopic ultrasound (EUS) is a preferred test for the diagnosis of early CP. The Rosemont classification strictly defines and assigns weighting to the previously described ductal and parenchymal criteria. Recent histological correlation studies have improved our understanding of the accuracy of EUS criteria. Digital imaging analysis and complementary functional testing may complement endosonographic diagnosis. EUS-directed celiac plexus blockade and ductal access techniques have expanded the therapeutic armamentarium for pain management in CP.