[Isolated Crohn's disease of the appendix].

A case of isolated Crohn's disease involving the appendix and, indeed, presenting as acute appendicitis is described and related to 12 analogous cases reported in the literature. Crohn's disease of the appendix is exclusively diagnosed by histopathological evidence. According to published data isolated Crohn's disease of the appendix would not seem to predispose towards the formation of fistulae after appendectomy. Subsequent evidence of Crohn's disease in other sites is similar in frequency to cases with primary Crohn's disease in other parts of the intestinal tract.