Prefixes:
* Cholangio-: Refers to the bile ducts (cholangio means "bile duct").
* Pancreato-: Refers to the pancreas.
Suffixes:
* -graphy: Indicates the process of recording an image.
Putting it together:
"Cholangiopancreatography" literally means "recording an image of the bile ducts and pancreas." This refers to a medical imaging technique, usually using contrast dye, to visualize these structures.