Radiology Book



  • Silhouette Sign


Silhouette Sign

Aka: Silhouette Sign
  1. Findings
    1. Seen on XRay films
    2. Loss of normal border between structures
      1. Different radiodensities form border on XRay
    3. Appearance of normally invisible outline
  2. Interpretation
    1. Suggests infiltrates, fluids or air
    2. False Positives
      1. Poor film technique (poor penetration or alignment)
      2. Normal anatomic variants

You are currently viewing the original '\legacy' version of this website. Internet Explorer 8.0 and older will automatically be redirected to this legacy version.

If you are using a modern web browser, you may instead navigate to the newer desktop version of fpnotebook. Another, mobile version is also available which should function on both newer and older web browsers.

Please Contact Me as you run across problems with any of these versions on the website.

Navigation Tree