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Pyomyositis: characteristics at CT and MR imaging.

Publication ,  Journal Article
Gordon, BA; Martinez, S; Collins, AJ
Published in: Radiology
October 1995

PURPOSE: To establish imaging criteria for pyomyositis (PM). MATERIALS AND METHODS: Twenty-seven computed tomographic (CT) scans and 11 magnetic resonance (MR) images obtained in 32 patients with PM were reviewed. Images in 10 patients with PM and 16 with soft-tissue masses were evaluated blindly. RESULTS: At CT, all 27 patients had muscle enlargement with heterogeneous attenuation; 26 patients had a focal fluid collection, with rim enhancement in all 18 patients who underwent contrast material-enhanced CT. Twenty-four patients had cellulitis. At MR imaging, all 11 patients had both a subtle increase in signal intensity in the affected muscle(s) on T1-weighted images and cellulitis. Nine patients had a focal fluid collection, which had high signal intensity and a hypointense rim on T2-weighted images. In six patients, a rim of increased signal intensity was seen around the collection on T1-weighted images. Six gadolinium-enhanced examinations demonstrated rim enhancement. Eight patients had fluid in the distal joint. All patients with PM were correctly identified when evaluated with the control subjects; however, there were four false-positive results. CONCLUSION: CT and MR imaging can help characterize changes that are suspicious for PM.

Duke Scholars

Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

October 1995

Volume

197

Issue

1

Start / End Page

279 / 286

Location

United States

Related Subject Headings

  • Tomography, X-Ray Computed
  • Suppuration
  • Staphylococcal Infections
  • Nuclear Medicine & Medical Imaging
  • Myositis
  • Middle Aged
  • Male
  • Magnetic Resonance Imaging
  • Humans
  • Female
 

Citation

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ICMJE
MLA
NLM
Gordon, B. A., Martinez, S., & Collins, A. J. (1995). Pyomyositis: characteristics at CT and MR imaging. Radiology, 197(1), 279–286. https://doi.org/10.1148/radiology.197.1.7568838
Gordon, B. A., S. Martinez, and A. J. Collins. “Pyomyositis: characteristics at CT and MR imaging.Radiology 197, no. 1 (October 1995): 279–86. https://doi.org/10.1148/radiology.197.1.7568838.
Gordon BA, Martinez S, Collins AJ. Pyomyositis: characteristics at CT and MR imaging. Radiology. 1995 Oct;197(1):279–86.
Gordon, B. A., et al. “Pyomyositis: characteristics at CT and MR imaging.Radiology, vol. 197, no. 1, Oct. 1995, pp. 279–86. Pubmed, doi:10.1148/radiology.197.1.7568838.
Gordon BA, Martinez S, Collins AJ. Pyomyositis: characteristics at CT and MR imaging. Radiology. 1995 Oct;197(1):279–286.
Journal cover image

Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

October 1995

Volume

197

Issue

1

Start / End Page

279 / 286

Location

United States

Related Subject Headings

  • Tomography, X-Ray Computed
  • Suppuration
  • Staphylococcal Infections
  • Nuclear Medicine & Medical Imaging
  • Myositis
  • Middle Aged
  • Male
  • Magnetic Resonance Imaging
  • Humans
  • Female