Consolidation - Right upper lobe

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Consolidation - Right upper lobe

  • Consolidation may be limited to a particular lobe of the lung
  • This image shows consolidation of the right upper lobe which is confined inferiorly by the horizontal fissure
  • If the consolidation is due to infection, then the term ‘lobar pneumonia’ is correctly used
  • Lobar pneumonia is usually caused by typical organisms – such as Streptococcus pneumoniae

Consolidation - Right middle lobe

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Consolidation - Right middle lobe

  • The right middle lobe is located below the horizontal fissure which confines the area of consolidation in this image
  • The right middle lobe is also next to the right heart border which is obscured in this image

Consolidation - Right lower lobe

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Consolidation - Right lower lobe

  • Both this image and the image above could correctly be described as showing consolidation of the right lower zone
  • It is possible to determine that the consolidation in this image is in the right lower lobe rather than the middle lobe
  • The right lower lobe is located adjacent to the right hemidiaphragm which is not clearly visible in this image
  • The right heart border is still visible which indicates that the consolidation is not in the middle lobe
  • These images demonstrate examples of the silhouette sign
  • Read more about the silhouette sign