Figure 7.

Improved contrast transit between two closely spaced WSC challenges. Initial WSC challenge radiographs (a, 8 h; b, 24 h) demonstrate partial contrast transit into the colon (arrow) by 24 h but with persistent mildly dilated small bowel. The patient left against medical advice before a clamp trial and progression of diet could be attempted but returned the next day. Images from a repeat WSC challenge obtained 2 days after the initial challenge (c, 8 h; d, 24 h) demonstrate improved contrast transit with some colonic contrast seen at 8 h and complete transit into the colon by 24 h. Following the repeat challenge, the patient’s diet was successfully advanced with resolution of symptoms. WSC, water-soluble contrast