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Colon CT Appearances

 

 


Pseudomembranous Colitis CT Findings

  • Significant wall thickening (usually > 1 cm), thicker than all other causes except Crohn’s disease
  • Irregular or eccentric wall thickening, often concentric
  • Stranding around bowel
  • May be a pancolitis or segmental in nature
  • Mural hypoattenuation (edema) or hyperattenuation (acute inflammation)
  • Thumbprinting- thickened haustra due to edema
  • “Accordian sign”- oral contrast between thickened haustra

Pseudomembranous Colitis

Other Information About Pseudomembranous Colitis

Etiology:

  • C difficile infection

Epidemiology:

  • Often related to recent antibiotic use

Presentation:

  • Diarrhea
  • Fever
  • Abdominal cramping

Prognosis:

  • Generally good

Related Pearls: Pseudomembranous Colitis

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