Endoscopic retrograde cholangiopancreatography (ERCP)
![Endoscopic retrograde cholangiopancreatography (ERCP)](https://patient.gastro.org/wp-content/uploads/2021/09/CGH-Patient-Ed-2019-ERCP-1024x532.jpg)
Endoscopic retrograde cholangiopancreatography (ERCP) is a procedure that uses endoscopy, x-ray and dye to view the biliary tract and pancreatic ducts and possibly treat issues there.
Gallstones
![Gallstones in the gallbladder](https://patient.gastro.org/wp-content/uploads/2021/09/2018320132237-gallstones.png)
Gallstones are parts of the bile stored in the gallbladder, such as cholesterol and bilirubin, hardened into solid matter. Symptoms can be pain in the upper abdomen, vomiting and sweating.