Early and Delayed 99mTc-MDP SPECT/CT Findings in Rheumatoid Arthritis and Osteoarthritis

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7 Scopus citations


We report the case of a 74-year-old man with seropositive rheumatoid arthritis (RA) and radiographic osteoarthritis (OA) who underwent dual-phase high-resolution 99mTc-MDP SPECT/CT. Early radiotracer enhancement was noted in 2 RA joints of the right hand, both presenting with a ring-like uptake pattern around the joint, consistent with synovitis. Insignificant early enhancement was noted at the first carpometacarpal joint, despite presentation of CT features of OA. The delayed-phase enhancement patterns were distinct, showing asymmetry in RA joints, but a symmetric, joint-centered pattern for the OA joint.

Original languageEnglish (US)
Pages (from-to)e480-e481
JournalClinical Nuclear Medicine
Issue number11
StatePublished - Nov 1 2017


  • blood pool
  • bone scan
  • osteoarthritis
  • rheumatoid arthritis
  • synovitis

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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