[Stenosis of the ureter in the development of Crohn's disease]

The authors report the exceptional case of a young boy, 14 years old, affected by Crohn's disease, first treated medically. Extension and aggravation of injuries required right hemicolectomy. An obstruction of right ureter appeared, diagnosed by echography. The investigations showed up a stenosis of right ureter. A resection-suture was performed and the follow up at two years in good.