Endoscopic management of duodeno-ileal fistula secondary to diffuse B-cell lymphoma.

Lymphoma arising in the gastrointestinal tract is relatively common and can affect multiple sites. The development of a gastrointestinal fistula secondary to lymphoma is very rare and has not previously been reported between the duodenum and ileum. This is the first reported care where a fistula secondary to lymphoma has been treated by an endoscopic covered duodenal stent occluding the defect rather than surgical intervention. This strategy permitted early commencement of curative intent chemotherapy which led to tumour shrinkage and fistula closure.