What do these two x-rays have in common?

Simple question. What do these two chest x-rays have in common. No info I’m afraid.

Widened mediastinum: Supine v Erect

Widened mediastinum: Supine v Erect

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About Andy Neill

EM Reg/Resident based near Dublin. Former anatomy lecturer, theology student and occasional musician @andyneill | + Andy Neill | Contact


  1. Andy
    There was a talk at ACEP I heard yesterday on Joe Lex FEMT where they covered this.
    The panscan or selective imaging debate in the US seems to be a bit over the top! The reading of supine AP cxr as “wide mediastinum ” prompts a lot of unnecessary radiation it seems.
    Personally I only order panscans on lawyers and their families 😉

    • agreed -- it’s the unconscious guys who you can’t get a history (or even have a conversation with) and have a big mechanism that i worry about more. An apparently isolated injury (like a limb) can usually be distinguished as just that if they’re awake and cooperative and don’t need the panscan

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