Fat halo sign is associated with
High-Yield Explanation
The 'Fat halo sign' refers to a feature seen on CT examination of the abdomen, and represents infiltration of the submucosa with fat, 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 (submucosa).