Radiographic features of colitis associated with the hemolytic-uremic syndrome.

Four cases of colitis associated with the prodromal phase of the hemolytic-uremic syndrome are presented. Abnormalities demonstrable on barium enema examination consist of prominent filling defects, marginal serrations, and mucosal edema. Segmental bowel dilatation and areas of stenosis may also be present. Although nonspecific in itself, this appearance of the colon when correlated with the clinical history and peripheral blood smear should enable the radiologist to suggest the diagnosis of hemolytic-uremic syndrome.