What is the role of ultrasonography in the workup of hemophilia?

Updated: Sep 27, 2019
  • Author: Lars J Grimm, MD, MHS; Chief Editor: Felix S Chew, MD, MBA, MEd  more...
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Soft tissues are seen well with ultrasonography. [41] A mass that is suspected of being a joint effusion or a soft-tissue pseudotumor can be demonstrated quickly with this modality. [9]

If the acoustic window is adequate, the finding of a sonolucent mass on ultrasonography is highly suggestive of fluid. Mixed signal intensity is likely due to a soft-tissue mass, such as a hematoma.

The inability to place the ultrasound transducer over the area of interest precludes scanning. In addition, not only does bone block the sound waves and limit the ability to see subchondral cysts and erosions, but cartilage cannot be adequately differentiated from bone.

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