Test Findings
 

Costophrenic Blunting

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Overview

    • Look For

    • Loss of the normally sharp angle between the diaphragm and the chest wall laterally.
    • Significance

    • A sign of small pleural effusion.
  • Isolated costophrenic blunting without other signs of pleural effusion is estimated to represent approximately 300mL of pleural fluid.
    • Example

    • Bibasal costophrenic blunting in a patient with small bilateral pleural effusions
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      Overlay
      Bibasal costophrenic blunting in a patient with small bilateral pleural effusions
       
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