Keywords

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

figure a

Fatty infiltration of the submucosal bowel layer – the “fat halo” sign (↑) – can be regarded as specific for inflammatory bowel diseases (Crohn disease, ulcerative colitis), but unlike the “double halo” sign and the “target” sign, it indicates the chronic stage of disease.