Endoscopy, Table of Contents Endoscopy 1981; 13(5): 220DOI: 10.1055/s-2007-1021689 CASE REPORT© Georg Thieme Verlag KG Stuttgart · New YorkSonolucent Biliary Cast Preventing Endoscopic SphincterotomyF. Shanahan, J. Lennon, T. Corrigan Departments of Gastroenterology and Surgery, Mater Misericordiae Hospital, Dublin Recommend Article Abstract PDF Download Buy Article Summary Choledocholithiasis forming a total cast of the extra-hepatic biliary tree is described. This is an unusual reason for failure of endoscopic sphincterotomy and could not be diagnosed by ultrasound in this case. Key words: Biliary cast - Endoscopic sphincterotomy - Ultrasound - Choledocholithiasis PDF (249 kb)