A functional colonic obstruction: Cannon's point.
A patient presented with a large bowel obstruction after laparoscopic hernia repair converted to open inguinal hernia repair. A contrast enema examination revealed an area of narrowing in the midtransverse colon, consistent with Cannon's point. This represents a physiologic sphincter with focal narrowing of the colon lumen.
Scott T
ST
McKnight
Andrew
A
Myers
Cherie L
CL
Canon
Mary
M
Hawn
CT, computed tomography