A special form of endoscopy called endoscopic retrograde cholangiopancreaticography, or ERCP, allows pictures of the pancreas, gallbladder, and related structures to be taken. ERCP is also used for stent placement and biopsies. Endoscopic ultrasound or EUS combines upper endoscopy and ultrasound examination to obtain images and information about various parts of the digestive tract. Why Do I Need an Endoscopy? Doctors will often recommend endoscopy to evaluate: Stomach pain; Ulcers, gastritis, or difficulty swallowing
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