External compression by a rib that caused a pseudolesion at virtual colonoscopy - 16/08/11
Doi : 10.1016/j.gie.2006.06.003
Eugene K. Choi, BA
Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
Weill Medical College of Cornell University, New York, New York, USA
Seong Ho Park, MD
Hyun Kwon Ha, MD
Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| Commentary Although intra-abdominal structures outside the colon (eg, liver, spleen, aorta, and loops of bowel) are known to compress the colon in a way that may simulate the appearance of focal neoplasms during 3D review with virtual colonoscopy, external compression by a lower rib is distinctly unusual. Such “pseudolesions” generally occur in thin persons. Given that colonic compression by a rib may only manifest in the prone position, it is most likely to be observed during virtual colonoscopy, which includes CT scanning in both supine and prone positions. Henry Miller said, “The moment one gives close attention to anything, even a blade of grass, it becomes a mysterious, awesome, indescribably magnificent world in itself.” The world of virtual imaging is only beginning to be seen. Lawrence J. Brandt, MD Associate Editor for Focal Points |
© 2006
American Society for Gastrointestinal Endoscopy. Publié par Elsevier Masson SAS. Tous droits réservés.
Vol 64 - N° 6
P. 1009-1010 - décembre 2006 Retour au numéro
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