Duodenal involvement of Crohn's disease

Abstract

Differences encountered in intrinsic duodenal lesions apparently reflect two different clinical patterns. Stenosis is not usually associated with multifocal disease and is often the first evidence of disease. Ulcer-like lesions are not specific; they do not evolve into stenosis as do ulcers in other sites of the disease, spontaneously disappear and relapse, and do not require surgery, except for complications. They are always associated with other locations of the disease.