Colon CT Appearances
Sigmoid Colon Cancer CT Findings
- Discrete soft-tissue mass that narrows the colonic lumen
- Large masses may undergo central necrosis and appear as a soft-tissue mass with central low attenuation or rarely air attenuation
- May appear as asymmetric nodular wall thickening that narrows the lumen
- May not be able to distinguish from diverticulitis on CT
- Submucosal fat is not uncommon in UC