Figure 1.

Findings on barium study of the small intestine. A: Barium study in three different patients with tuberculosis (TB) demonstrating shrunken, conical and retracted cecum (arrows); B: Multiple strictures (arrows) in ileal loops of a patient with TB. Note the short, concentric and smooth outline of the strictures; C: Multiple eccentric strictures seen in the ileum of a patient with Crohn's disease (CD). Note the normal ileo-cecal junction; D: Barium study showing an ulceronodular pattern involving a long segment of the ileum in a patient with CD. Note sparing of the ileo-cecal junction (arrow).