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DOI:10.2214/AJR.07.3159
AJR 2008; 190:1521-1526
© American Roentgen Ray Society

Clinical Observations

Colonic Pseudoobstruction: CT Findings

Ji Soo Choi1, Joon Seok Lim1,2, Hoguen Kim3, Jin-Young Choi1, Myeong-Jin Kim1, Nam Kyu Kim4 and Ki Whang Kim1

1 Department of Diagnostic Radiology, Yonsei University Health System, Republic of Korea.
2 Institute of Gastroenterology, Yonsei University Health System, 134 Shinchon-dong, Seodaemoon-ku, Seoul, 120-752, Republic of Korea.
3 Department of Pathology, Yonsei University Health System, Republic of Korea.
4 Department of Surgery, Yonsei University Health System, Republic of Korea.

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.

Keywords: colonic pseudoobstruction • CT • ganglion cell • transitional zone


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