Skip to main content

Airspace Disease

  • 2885 Accesses

Abstract

The purpose of this chapter is to demonstrate the appearance of airspace disease in the lungs. The pulmonary acinus is the basic structural unit of the lung involved in gas exchange (Fig. 13.1). It is the structural unit of lung distal to the terminal bronchiole, is supplied by respiratory bronchioles, and is 6–10 mm in diameter. It contains alveolar ducts and alveoli. The terminal bronchiole is the most peripheral airway that is purely conductive in function with no gas exchange capability. A pulmonary lobule (or secondary pulmonary lobule) is the smallest unit of lung surrounded by connective tissue septa. One lobule contains between 3 and 25 acini. Recall the four densities seen on a radiograph – air, soft tissue, fat, and bone. Disease within the airspace is manifest on the radiograph as soft tissue density. Disease may involve numerous acini or spread from one acinar unit to another. The opacified acini become confluent, producing a fluffy, homogeneous radiographic pattern characteristic of airspace disease as seen in Fig. 13.2.

Keywords

  • Edema
  • Pulmonary
  • Infection
  • Pneumonia
  • Alveolus
  • CHF
  • Acinus
  • Bronchogram
  • Cough
  • Opacity

This is a preview of subscription content, access via your institution.

Buying options

Chapter
USD   29.95
Price excludes VAT (USA)
  • DOI: 10.1007/978-3-319-10362-4_13
  • Chapter length: 4 pages
  • Instant PDF download
  • Readable on all devices
  • Own it forever
  • Exclusive offer for individuals only
  • Tax calculation will be finalised during checkout
eBook
USD   64.99
Price excludes VAT (USA)
  • ISBN: 978-3-319-10362-4
  • Instant PDF download
  • Readable on all devices
  • Own it forever
  • Exclusive offer for individuals only
  • Tax calculation will be finalised during checkout
FIGURE 13.1
FIGURE 13.2
FIGURE 13.3
FIGURE 13.4

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and Permissions

Copyright information

© 2015 Springer International Publishing Switzerland

About this chapter

Cite this chapter

Singh, H., Neutze, J.A., Enterline, J.R. (2015). Airspace Disease. In: Singh, H., Neutze, J., Enterline, J. (eds) Radiology Fundamentals. Springer, Cham. https://doi.org/10.1007/978-3-319-10362-4_13

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-10362-4_13

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-10361-7

  • Online ISBN: 978-3-319-10362-4

  • eBook Packages: MedicineMedicine (R0)