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Bile duct stones are typically removed using endoscopic retrograde cholangiopancreatography (ERCP), a minimally invasive procedure that combines x-ray and upper endoscopyâan exam of the upper gastrointestinal tract, consisting of the esophagus, stomach and duodenum (the first part of the small intestine)âusing an endoscope, which is a lighted, flexible tube, about the thickness of a finger.
The common bile duct serves as the repository for bile when the gallbladder is removed. If it becomes dilated, it has become enlarged in diameter. One common reason for the enlargement is a gallstone. The stone may have passed or may be present, in which case the GI doctor will go in with a scope and detect it and, if you consent, blast it with some shockwaves or surgically remove it.