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MR imaging in acute infectious cellulitis

A Rahmouni1, O Chosidow, D Mathieu

  • 1Department of Radiology, Hôpital Henri Mondor, Créteil, France.

Radiology
|August 1, 1994
PubMed
Summary
This summary is machine-generated.

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Magnetic resonance (MR) imaging can identify severe necrotizing infections in acute cellulitis. Specific MR imaging features, especially on T2-weighted images, help differentiate between necrotizing and non-necrotizing forms.

Area of Science:

  • Radiology
  • Infectious Diseases
  • Medical Imaging

Background:

  • Cellulitis is a common bacterial skin infection.
  • Necrotizing soft-tissue infections are severe forms requiring prompt diagnosis.
  • Accurate differentiation between necrotizing and non-necrotizing cellulitis is crucial for appropriate management.

Purpose of the Study:

  • To detail magnetic resonance (MR) imaging findings in acute infectious cellulitis.
  • To evaluate the diagnostic utility of MR imaging for identifying severe necrotizing forms of cellulitis.

Main Methods:

  • Spin-echo (SE) T1- and T2-weighted MR imaging was performed on 36 patients with acute infectious cellulitis.
  • Contrast-enhanced T1-weighted SE imaging was utilized when abscesses were suspected.

Related Experiment Videos

  • Surgical débridement and tissue biopsies were conducted in 16 patients.

    • Main Results:

    • Distinct MR imaging features were observed in necrotizing soft-tissue infections, including deep fascial hyperintensity on T2-weighted images, ill-defined muscular hyperintensity on T2-weighted images, and peripheral enhancement on contrast-enhanced T1-weighted images.
    • Non-necrotizing cellulitis showed signal intensity abnormalities confined to the subcutaneous fat.
    • MR imaging effectively delineated the extent of infection.

    Conclusions:

    • MR imaging is valuable for determining the precise extent of acute cellulitis.
    • MR imaging, particularly T2-weighted sequences, aids in diagnosing necrotizing soft-tissue infections.