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Pseudomembranous colitis: sonographic features.

D B Downey1, S R Wilson

  • 1Division of Diagnostic Ultrasound, Toronto General Hospital, Ont, Canada.

Radiology
|July 1, 1991
PubMed
Summary
This summary is machine-generated.

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Sonography reveals characteristic colonic wall thickening and edema in pseudomembranous colitis (PMC). These findings, along with ascites and reduced intraluminal gas, aid in diagnosing PMC in patients with diarrhea and antibiotic history.

Area of Science:

  • Gastroenterology
  • Radiology
  • Pathology

Background:

  • Pseudomembranous colitis (PMC) is a severe intestinal inflammation.
  • Accurate diagnosis is crucial for timely treatment.

Purpose of the Study:

  • To describe sonographic features of PMC.
  • To correlate sonographic findings with clinical, radiologic, and pathologic data.

Main Methods:

  • Sonographic evaluation of 13 patients with PMC.
  • Correlation of imaging findings with clinical presentation and pathology.

Main Results:

  • All patients showed moderate to marked colonic wall thickening.
  • Characteristic sonographic pattern: wide, heterogeneous echogenic inner layer (edematous submucosa/mucosa) and narrow hypoechoic outer layer (muscularis propria).

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  • 69% of cases exhibited colon lumen effacement due to mural edema; ascites and reduced intraluminal gas facilitated evaluation.

    • Conclusions:

    • Sonographic findings strongly suggest PMC in patients with watery diarrhea and antibiotic history.
    • Sonography is a valuable tool for diagnosing PMC, especially when combined with clinical context.