[The double contrast small bowel enema in Crohn's disease. 32 examinations (author's transl)].

The authors have performed 150 double contrast small bowel enema. The results of 32 radiological examinations in Crohn's disease are reported. Four elementary alterations of the mucosal pattern can be described:--folding modifications,--mucosal defects,--different ulcers,--association between defects and ulcers drawing the classic "cobblestone" pattern. The transmural lesion is evident by fistules, strings, dilatations and mesenteric retractions. The conventionnal radiologic examination of the small bowel is satisfactory to show the manifestations of transmural lesion; but the double contrast enema is clearly more performing to characteristic mucosal lesions. So it appears indispensable to use this method for exploration of every Crohn's disease, to complete the conventionnal repletion enema.