What is the role of FDG-PET/CT scanning in the workup of relapsing polychondritis (RP)?

Updated: Dec 24, 2020
  • Author: Nicholas Compton, MD; Chief Editor: Herbert S Diamond, MD  more...
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Yamashita et al reported on the use of of fluorodeoxyglucose (FDG)-PET/CT for the diagnosis of relapsing polychondritis and evaluation of disease activity. According to the authors, FDG-PET/CT is a potentially powerful tool for the early diagnosis of RPC, especially in patients without easily biopsied organ involvement, and facilitates evaluation of disease extent and disease activity during treatment. Typical FDG accumulation was noted in the following sites in the 13 patients studied [49] :

  • Tracheobronchial tree (nine patients)
  • Costal cartilage (five)
  • Joints (five)
  • Larynx (four)
  • Nasal cavity/paranasal sinuses (three)
  • Auricles (three)
  • Lymph nodes (three)
  • Aorta (one)

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