Aim - The aim of this work was to evaluate the feasibility of endoscopic in sertion of biliary stents in patients with duodenal stents who develop secondary malignant obstructive jaundice. Patients and methods - The study population i ncluded 133 patients with unresectable malignant duodenal obstruction. In 106 pa tients a biliary stent was inserted before or at the same time as the duodenal s tent. Malignant biliary obstruction appeared secondarily in 18 patients; fifteen of these patients already had a biliary stent. We present our experience of bil iary stent insertion in these 18 patients with metallic duodenal stents. Results - Biliary obstruction was successfully alleviated in 17 out of 18 patients (9 4% ) without complication. Insertion of a new biliary stent failed in one patie nt because the mesh of the duodenal stent passed over the metallic biliary stent already in place. Mean duration of endoscopic insertion was 95 minutes (range: 60- 180). All patients remained free of biliary complications to death (57 days , range: 30- 120). Conclusion - Our report shows that endoscopic insertion of a biliary stent is feasible in patients who have metallic duodenal stents. Techn ical difficulties exist especially if the mesh of the duodenal stent passes over the papilla. Aim - The aim of this work was to evaluate the feasibility of endoscopic in sertion of biliary stents in patients with duodenal stents who develop secondary malignant obstructive jaundice. Patients and methods - The study population i ncluded 133 patients with unresectable malignant duodenal obstruction. In 106 pa tients a biliary stent was inserted before or at the same time as the duodenal s tent. patients with metallic duodenal stents. Results - Biliary obstruction was successfully alleviated in 17 out of 18 patients (9 4%) without complication. Insertion of a new biliary stent failed in one patie nt because the mesh of the duodenal stent passed over the metallic biliary Mean duration of endoscopic insertion was 95 minutes (range: 60-180). All patients remained free of bil Conclusion - Our report shows that endoscopic insertion of a biliary stent is feasible in patients who have metallic duodenal stents. Technical difficulties exist especially if the mesh of the duodenal stent passes over the papilla.