Healed lesion: Just as we sometimes get a scar after a fall, the lung can get a scar form an old infection.
Answered 5/20/2013
5.1k views
Previous infection: Scarring usually represents changes from old infectious disease or previous surgery. Most common infection is granulomatous like TB. Scarring usually means disease is not active,
Answered 12/5/2014
3.5k views
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