CT adds valuable information in the assessment of inflammatory bowel d
iseases in children [1, 2]. Although early mucosal changes are best sh
own by barium studies, extramucosal and extraintestinal abnormalities
are best visualized with CT. CT can be used to differentiate the vario
us extramucosal abnormalities that may have similar appearances on bar
ium studies, including bowel wall thickening, abscess, phlegmon, or ad
enopathy. Although many inflammatory conditions of bowel may have simi
lar appearances on CT scans, a careful analysis of the appearance of t
he bowel wall and the associated extraintestinal abnormalities, combin
ed with a review of the clinical and laboratory data, enables a specif
ic diagnosis to be made in many cases.