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    • #28368
      Xue Heng

      Hi, Steve.
      This was a 49-year-old male patient.
      He had direct trauma at medial knee one month ago.
      Both hyperechoic and hypoechoic area were observed at the injury site.
      I know that the hyperechoic area were swelling fat tissue.
      But what are the hypoechoic area? I have no idea.
      Looking forward to your reply. Thank you very much.

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    • #28404
      Stephen Bird

      Hi Xue,

      I think you are correct in thinking that the hyper echoic area is fat contusion.

      I suspect the hypechoic area is a combination of haematoma and fat necrosis in that sub-cut adipose layer following the trauma.


    • #30229
      Xue Heng

      Thank you for answering my question, Steve!

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