A<unk>  is a sign seen on a radiograph that indicates localized ileus from nearby inflammation. Simply put, it is the dilation of a segment of small intestine to be differentiated from colonic cutoff sign which is a dilation of a segment of large bowel. An isolated distended<unk>  of bowel is seen near the site of injured viscus or inflamed organ. This<unk>  is called a<unk> ." It arises from the body's efforts to localize traumatic or inflammatory lesions. The local distention of that intestinal<unk>  is due to local paralysis and accumulation of gas in the intestinal<unk> . In acute pancreatitis, the<unk>  is usually seen in left hypochondrium, while in acute cholecystitis, it is seen in the right hypochondrium. In acute appendicitis, the<unk>  is seen in right right lower quadrant.
Sentinel loop
Pulvermacher's chain
Gartland classification
Pipkin classification
Siewert classification
Herscovici classification
Gray's Anatomy
Engel classification