No Stone Left Unturned: Using Choledocholithiasis to Open a Papillary Stenosis via a Choledochodudenal Fistula.

In a patient found to have cholelithiasis and choledocholithiasis, a choledochoduodenal fistula was used to gain access to the bile duct. Due to severe stenosis and atrophy of the major papilla, cannulation was not possible. Stones were purposely impacted in the native ampulla to cause bulging and stretching of the stenosis. Once the stenosis was stretched, the bile and pancreatic duct were accessed via the native ampulla, allowing for stone removal.