Introduction:

Migration of a prosthesis in the bile duct is a very rare complication normally expelled in a natural way, but on rare occasions it can lead to severe complications.

Objective:

To describe a rare complication due to migration of biliary prosthesis.

Clinical case:

A case is presented of a 75-year-old male patient with a biliary stent who presented a sigmoid perforation secondary to migration of the prosthesis.

Conclusions:

Prosthetic migrations should be monitored and, if they are not eliminated spontaneously or the patient presents with symptoms, they should be removed endoscopically or surgically.

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