FBI sign
FBI sign
Modality: X-ray (Lateral)

- “ Lipohaemarthrosis of the knee: FBI sign ”

Used in the following articles:

  • FBI sign - “ The FBI sign is an acronym referring to the components that form a lipohaemarthrosis. It stands for: fat blood interface ”
  • Lipohaemarthrosis - “ Lipohaemarthrosis results from an intra-articular fracture with escape of fat and blood from the bone marrow into the joint, and is most frequentl...”
  • Joint effusion - “ This article is dedicated to the humble joint effusion, particularly the plain radiographic appearances. A joint effusion is defined as an increa...”

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