Objective: The purpose of this review was to define the imaging features of colonic pseudoobstruction and to describe the pathologic findings.
Conclusion: Colonic pseudoobstruction can be diagnosed on the basis of CT findings that show extensive colonic dilatation without an obstructive lesion at the intermediate transitional zone or adjacent to the splenic flexure. Pathologic examination reveals that intramural ganglion damage has a high tendency to occur in cases of chronic colonic pseudoobstruction.