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Necrotizing fasciitis: CT characteristics

M G Wysoki1, T A Santora, R M Shah

  • 1Department of Radiologic Sciences, Allegheny University Hospital, Philadelphia, PA 19129, USA.

Radiology
|June 1, 1997
PubMed
Summary
This summary is machine-generated.

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Computed tomographic (CT) criteria, including asymmetric fascial thickening and gas, are valuable for diagnosing necrotizing fasciitis. CT scans can also identify deep fluid collections, aiding in patient assessment.

Area of Science:

  • Radiology
  • Medical Imaging
  • Infectious Disease

Background:

  • Necrotizing fasciitis is a severe soft tissue infection requiring prompt diagnosis.
  • Accurate diagnostic criteria are essential for effective treatment and improved patient outcomes.

Purpose of the Study:

  • To establish computed tomographic (CT) criteria for diagnosing necrotizing fasciitis.
  • To correlate CT findings with clinical factors and patient outcomes.

Main Methods:

  • Retrospective review of 20 CT scans from patients with pathologically confirmed necrotizing fasciitis.
  • Analysis of CT findings including fascial thickening, fat infiltration, fluid collections, soft-tissue gas, muscle involvement, and intra-abdominal extension.
  • Correlation of imaging findings with clinical data such as comorbidities, disease site, treatment, and outcomes.

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Main Results:

  • Asymmetric fascial thickening and fat stranding were observed in 80% of patients.
  • Gas tracking along fascial planes was present in 55% of cases, and abscesses in 35%.
  • Common infection sites included the scrotum, lower extremities, and perineum, with diabetes being a frequent comorbidity.

Conclusions:

  • Asymmetric fascial thickening and the presence of gas on CT are significant indicators for necrotizing fasciitis.
  • CT imaging is valuable for assessing the extent of infection and identifying associated deep collections, aiding in management decisions.