Crohn's disease: less common radiographic manifestations.

Unusual manifestations of common diseases are still relatively common events. Crohn's disease may involve the entire gastrointestinal tract from the pharynx to the anus. Although the classic findings of ileocolic disease are well known, the changes described above are less commonly encountered. They may be subject to misdiagnosis unless the protean manifestations of Crohn's disease are kept in mind.