colon cutoff sign

co·lon cut·off sign

radiographic sign of (usually) inflammatory disease preventing distention of the distal transverse colon.
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colon cutoff sign

The finding of colonic gas in the proximal colon but not in the part distal to the splenic flexure. It may be identified on plain radiography or computer tomographic scanning of the abdomen and is indicative of acute pancreatitis.
Medical Dictionary, © 2009 Farlex and Partners