A medical condition involving abnormal air accumulation in or under the skin, causing swelling.
From 'aero-' (air), 'derma' (from Greek derma, skin), and '-ectasia' (from Greek ektasis, dilation). A precise medical term describing subcutaneous air accumulation.
This condition actually happens after surgery or trauma when air gets trapped under the skin—it sounds like science fiction but it's real, and it creates an eerie crackling sensation under the skin called 'crepitus' that doctors find diagnostically useful.
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