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Hydropneumothorax implies presence of both air and fluid in the pleural space ( i.e. between two layers of pleura). An erect chest xray will show air fluid level.The horizontal fluid level is usually well defined and extends across the whole length of hemithorax.


  • Iatrogenic: Introduction of air during pleural fluid aspiration in effusion.
  • Presence of gas forming organism.
  • Trauma

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Hydropneumothorax". A list of authors is available in Wikipedia.
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