Investigative Magnetic Resonance Imaging

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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MRI Findings of a Malignant Solitary Fibrous Tumor of the Diaphragmatic Pleura: a Case Report

  • Kim, Jeong Kyeom (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Kim, Min Seon (Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Lee, Kyung Hee (Department of Radiology, Inha University Hospital, Inha University School of Medicine) ;
  • Kim, Lucia (Department of Pathology, Inha University Hospital, Inha University School of Medicine)
  • Received : 2021.06.16
  • Accepted : 2021.09.07
  • Published : 2021.12.30
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Abstract

Solitary fibrous tumors (SFT) are rare mesenchymal tumors that most commonly develop in the pleura; they rarely involve the diaphragm. MRI has not been widely used to evaluate SFTs of the thoracic cavity, though it may be highly useful in assessing local invasion, predicting malignant potential, and helping in the differential diagnosis. However, MRI findings of malignant SFTs of the diaphragmatic pleura have been described in only two cases. We report a rare case of a malignant solitary fibrous tumor of the diaphragmatic pleura in an 82-year-old man. We describe the clinical and characteristic imaging features, including computed tomography, conventional MRI, and diffusion-weighted imaging. Contrast-enhanced MRI is more accurate than is CT in identifying the origin of SFTs, predicting whether they ae benign or malignant, and assessing local invasion. This imaging modality proved helpful in deciding on the treatment strategy for these rare tumors.

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References

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