Abstract
The fat halo sign (in colonic imaging) corresponds to a feature seen on CT abdominal scans, and represents by widened and fat-infiltrated sub-mucosal layer of the bowl, between the muscularis propria and the mucosa. It is characterized by an inner (mucosa) and outer (muscularis propria and serosa) ring of enhancing bowel wall along with a non-enhancing middle layer of fat (submucosa) [1-3].
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