Axial bone window
Systems: Musculoskeletal
Section: Signs
Modality: CT (bone window)

- “ Polka dot sign is seen due to replacement of the normal cancellous bone by thickened vertical trabeculae surrounded by fat marrow or vascular lacu...”

Used in the following article:

  • Polka-dot sign (vertebral haemangioma) - “ The polka-dot sign is the result of the replacement of the normal cancellous bone by thickened vertical trabeculae surrounded by fat marrow or vas...”

View full size version of Polka-dot sign - intraosseous vertebral haemangioma

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