Intestinal perforation in a parastomal hernia by a migrated plastic biliary stent.

Organ perforation is a well-described complication of plastic biliary stent placement [1, 2, 3, 4, 5, 6, 7, 8, 9, 10][1-10]. Most commonly, a stent will cause duodenal perforation while still in the area of the biliary system. This often occurs in the setting of a periampullary diverticulum. Less frequently, a perforation occurs as a result of stent migration into the distal lumenal gastrointestinal tract. These cases have involved a migrated stent impacting at the level of the ileum or a sigmoid colon diverticulum. A plastic biliary stent causing perforation inside an incarcerated small bowel hernia sac has been reported [10]. We describe the first reported case of a plastic biliary stent causing perforation inside a parastomal hernia.