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    • #7836
      Stephen Bird
      Keymaster

      Hi Mike, I have loaded this up for you.

      You ask:

      What are the hyperechoic posterior glenohumeral signals?

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    • #7839
      Stephen Bird
      Keymaster

      Hi Mike,

      I have attached a labelled image,

      The echoes are the bony glenwood, the labrum and then a tiny bit of gas (nitrogen) which comes out of solution from the synovial fluid.
      You see this commonly,
      The differential would be some crystal deposition like CPPD or gout, however this is much less likely.

      Steve

    • #7840
      Stephen Bird
      Keymaster

      Here is the image,

      Steve

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    • #7862
      Michael Shilton
      Participant

      That’s great to know, thanks. Presumably the gas is transient and is unlikely to be there on a rescan? Mike.

    • #8053
      Stephen Bird
      Keymaster

      Hi Mike,

      Yes, gas will move around and not be a constant feature. It is usually a feature of a healthy joint with an intact capsule capable of generating a tight seal and hence negative pressure when moved dynamically.
      I see this gas as a sign of joint health rather than disease.

      Steve

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