Benign and Malignant Ampullary and Periampullary Lesions  
Anatomy
1. Located in the major duodenal papilla2.Represents the junction of the common bile duct (CBD) and main pancreatic duct
Anatomy
Three types of joining of the CBD and main pancreatic duct  1.the CBD and main pancreatic duct join to form a common channel that is 1–8 mm in length 2.a common channel is not present instead there is a single orifice in the papilla that contains a separate opening for each duct  3.two separate orific ...