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Fig. 1 | BMC Gastroenterology

Fig. 1

From: Limited precut sphincterotomy combined with endoscopic papillary balloon dilation for common bile duct stone removal in patients with difficult biliary cannulation

Fig. 1

a Difficult biliary cannulation was due to failure of 10 attempts at duodenal papilla; (b) Limited precut sphincterotomy was performed with the extent of cutting was less than half the length of the papillary mound; (c) Common bile duct stone was found after successful biliary cannulation; (d) Endoscopic papillary balloon dilation was performed after limited precut sphincterotomy; (e and f) Common bile duct stone was extracted by retrieval balloon

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