[Amoebic liver abscess in chronic colitis: revision of "Crohn disease" diagnosis]

We present two cases initially diagnosed as Crohn's disease which were treated with immunosuppressive drugs. In both patients the development of an amoebic liver abscess led to the correct diagnosis of amoebic dysentery. The pitfalls of the diagnosis of amoebic colitis and the possible influence of immunosuppression in the development of extraintestinal amoebiasis are discussed.