Duodenoenteric fistula due to retroperitoneal lymph node metastases

We report on a 75-year-old patient suffering from persistent diarrhea with consecutive weight loss of 50 kg over a nine month period. Three years ago the patient had been operated on a sigmoid cancer. Ultrasonography and CT-s can revealed retroperitoneal masses due to lymph node metastases. Enterocly sis demonstrated a fistula between the duodenum and the terminal ileum. Whe reas duodenocolic fistulae due to malignancies are well known to the treat of our knowledge a fistula bt twt en retroperitoneal parts of the duodenum and the intraperitoneal intestine have not descripted so far.