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Related Experiment Videos

Rheumatoid nodules: MR/pathological correlation

K I el-Noueam1, V Giuliano, M E Schweitzer

  • 1Department of Radiology, Alexandria University, Egypt.

Journal of Computer Assisted Tomography
|September 19, 1997
PubMed
Summary

Magnetic resonance imaging (MRI) reveals distinct signal characteristics in rheumatoid nodules, correlating with their histopathologic evolution. These findings aid in understanding rheumatoid arthritis progression.

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Area of Science:

  • Rheumatology
  • Radiology
  • Pathology

Background:

  • Rheumatoid nodules are common manifestations of rheumatoid arthritis.
  • Accurate imaging of rheumatoid nodules is crucial for disease monitoring.

Purpose of the Study:

  • To correlate magnetic resonance imaging (MRI) signal characteristics of subcutaneous rheumatoid nodules with their histopathologic features.
  • To enhance the understanding of rheumatoid nodule presentation on MRI.

Main Methods:

  • Retrospective analysis of MRI scans from five patients with rheumatoid arthritis.
  • Biopsy-proven subcutaneous rheumatoid nodules were evaluated.
  • Correlation of MRI findings with histopathologic data.

Main Results:

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  • Two distinct MRI appearances of rheumatoid nodules were identified: predominantly cystic with peripheral enhancement, and predominantly solid with uniform enhancement.
  • Gadolinium injection demonstrated differential enhancement patterns.
  • Observed MRI features closely mirrored histopathologic findings.

Conclusions:

  • Subcutaneous rheumatoid nodules exhibit varied appearances on MRI, including solid, cystic, or mixed components.
  • MRI findings correlate well with the histopathologic evolution of rheumatoid nodules.
  • MRI is a valuable tool for characterizing rheumatoid nodules in rheumatoid arthritis.