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airspace enlargement

Friday 23 December 2005

Types

- simple aispace enlargement

  • congenital
    • Down syndrome (trisomy 21)
    • lobar overinflation
      • congenital lobar emphysema
  • acquired
    • postpneumectomy (compensatory)
    • aging lung
    • starvation lung (?)
    • hyperlucent lung (vanishing lung)
      • Swyer-James syndrome

- emphysema

  • proximal acinar
    • centrilobular
    • centriacinar
  • panacinar (panlobular)
  • distal acinar (paraseptal)

- airspace enlargement with fibrosis

  • irregular emphysema
  • fibrotic lung disease

- other lesions of airspace enlargement

  • bullae
  • bleb
  • giant bullous emphysema (placental transmogrification)

References

- Non-Neoplastic Disorders of the Lower Respiratory Tract (AFIP, 2002)