What ultrasonographic findings indicate gout?

Updated: Jan 26, 2021
  • Author: Bruce M Rothschild, MD; Chief Editor: Herbert S Diamond, MD  more...
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At the first attack, sites affected with gout may be anechoic on ultrasonography. Later, diffuse enhancement may be evident on the articular cartilage surface. [104] Chondrocalcinosis show up as a thin, hyperechoic band within hyaline cartilage and punctuated pattern on fibrocartilage.

Ultrasonographic findings in established gout include the following [105, 106, 107] :

  • A “double-contour” sign, consisting of a hyperechoic, irregular line of MSU crystals on the surface of articular cartilage overlying an adjacent hyperechoic bony contour

  • “Wet clumps of sugar,” representing tophaceous material, described as hyperechoic and hypoechoic heterogeneous material with an anechoic rim

  • Bony erosions adjacent to tophaceous deposits

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