Endoscopic retrograde cholangiopancreatography, also known as ERCP, is a diagnostic procedure used to examine the duodenum, bile ducts, gall bladder, and pancreas. A thin, flexible instrument known as a duodenoscope is inserted through the mouth, down the esophagus into the stomach and duodenum (first part of small intestine).
Once the physician has positioned the duodenoscope appropriately, a dye (contrast media) is injected through the instrument into the bile ducts and/or the pancreatic duct. X-rays can then be taken of these areas. This is called diagnostic ERCP. However, most of the Dr. Ertan's ERCPs are actually done for treatment which is called therapeutic ERCP.