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Lung consolidation (mnemonic)

A commonly used mnemonic for recalling the features of consolidation is:

  • A2BC3


  • A: acinar rosettes
  • A: air bronchogram/alveologram
  • B: bat-wing distribution
  • C: coalescent/confluent ill-defined "fluffy" appearnce
  • C: consolidation: diffuse, perihilar/bibasilar, lobar/segmental, locular/multifocal
  • C: changes occur rapidly

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