**6. Pancreatic and biliary tumors**

Pancreatic and biliary tree tumors may present with acute or chronic pancreatitis due to obstruction of the pancreatic duct.

ERCP and EUS have applications in the diagnosis and management of ampullary tumors and intraductal papillary mucinous tumors of the pancreas. ERCP can help with visualization and biopsy sample collection from tumors involving the ampulla and periampullary region. EUS also can be utilized in evaluation of pancreatic and biliary tree masses causing pancreatitis and ultrasound-guided sample collection. Curative or palliative interventions such as endoscopic snare ampullectomy or ablative therapy can also be performed endoscopically. Recurrent pancreatitis for example in intraductal papillary mucinous tumors can be minimized by sphincterotomy with stenting.
