Gouty involvement of the patella and extensor mechanism of the knee mimicking aggressive neoplasm. A case series

Christopher Kester, Matthew T. Wallace, James Jelinek, Albert Aboulafia

Research output: Contribution to journalArticlepeer-review

Abstract

Gout is a common inflammatory crystal deposition disease that occurs in many joints throughout the body. Active gout is most often associated with painful synovitis causing searing joint pains, but gout can also produce large masses of space-occupying deposits called tophi. Tophi are most frequently seen in juxta-articular locations with or without bony erosion and are often misdiagnosed as degenerative joint disease. Soft tissue deposits and tendon involvement are also known manifestations of gout, but can present with indeterminate and alarming findings on imaging. We present three cases of tophaceous gout mimicking aggressive neoplasms in the extensor mechanism of the knee. All cases presented as extensor tendon masses eroding into the patella, with imaging findings initially concerning for primary musculoskeletal malignancy.

Original languageEnglish (US)
Pages (from-to)865-869
Number of pages5
JournalSkeletal Radiology
Volume47
Issue number6
DOIs
StatePublished - Jun 1 2018
Externally publishedYes

Keywords

  • Gout
  • Knee
  • Neoplasm
  • Tendon

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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