Medical Dictionary

pneumomediastinum

play
noun pneu·mo·me·di·as·ti·num \ˌn(y)ü-mō-ˌmēd-ē-ə-ˈstī-nəm\

Medical Definition of pneumomediastinum

plural

pneumomediastina

\-nə\play
  1. 1:  an abnormal state characterized by the presence of gas (as air) in the mediastinum

  2. 2:  the induction of pneumomediastinum as an aid to radiography


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