Abstract

An adenoma-carcinoma-sequenee also applies to adenomas of the papilla of Vater. ERCP alone does not provide any information on infiltrative growth. Endoscopic ultrasound (EUS) is usually limited in detection of processes smaller than 10 nun. High-frequency ultrasonic probes adjusted to the dimension of the pancreatic and biliary tract can, if applied during ERCP, visualize the peripapillary tissue at highest resolution. As diagnostic imaging influences the choice of therapeutical procedures we studied the diagnostic impact of miniprobe sonography in polypoid proce~es of the papilla of Vater.

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