[Crohn's disease and intestinal carcinoma: presentation of 2 cases and review of the literature].

We present the cases of two patients with Crohn's disease with consequent adenocarcinoma of the bowel. The first patient underwent an ileo-colic bypass 23 years before, a mucinous adenocarcinoma (Duke's stage C) was found on the anastomotic tract and on the excluded bowel, in areas within histologically recognizable Crohn's disease. In the second patient both the adenocarcinoma (Duke's stage C) of the transverse colon and the Crohn's disease (without any clinical evidence) in active phase has been found at the same time. We underline that such association seems to be not so rare as it seemed in the past. Accurate observation of patients, long time sufferers from the Crohn's disease, is advised to single out possible neoplastic complications at an early stage.