Fig. 3. (A) A 4 F single pigtail prophylactic pancreatic stent was placed before a needle-knife precut sphincterotomy. There was evidence of an impacted bile duct stone (B) that was expelled from the duct (C) after completion of the sphincterotomy.

Gastrointestinal Intervention 2017;6:37~53 https://doi.org/10.18528/gii170004

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