[Association of celiac disease and Crohn's disease. A case report].

Crohn's disease and celiac disease are two chronic digestive diseases. The pathological mechanisms that lead to them are not known. Their association is rare leading to diagnostic and etiopathogenic problems. The aim of this study is to report clinical, endoscopical and histopathological characteristics of this association and to discuss the etiopathogenic links between these two diseases. The association of celiac disease and Crohn's disease is possible although rare. Many etiopathological mechanisms were suggested to explain such an association. In the case of celiac disease, the association with Crohn's disease is suggested by the characteristics of the diarrhea, the anoperineal lesions and will be confirmed by ileocolonoscopy and biopsy. In contrary, the diagnosis of celiac disease associated with Crohn's disease is frequently suggested by the endoscopy of upper gastrointestinal tract systematically practiced and will be confirmed by biopsy and serological celiac disease tests.