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Test Findings

Pulmonary Consolidation

October 21st, 2019


  • Look For

  • Opacification obscuring pulmonary vessels
  • Silhouette signs - obliteration of normally clear outlines between lung fields and adjacent structures
  • Air bronchograms - tubular outlines of smaller airways
  • No loss of lung volume
  • Significance

  • Consolidation indicates filling of the alveoli and bronchioles in the lung with pus (pneumonia), fluid (pulmonary oedema), blood or neoplastic cells.
  • Causes of Pulmonary Consolidation

  • Pneumonia - lobar pneumonia, bronchopneumonia, fungal pneumonia, viral pneumonitis
  • Fluid - pulmonary oedema (cardiogenic / non-cardiogenic)
  • Neoplasm - primary lung cancer, metastases, lymphoma
  • Vascular - pulmonary haemorrhage, contusion or infarct; septic embolism
  • Inflammation - systemic lupus erythematosus, granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangitis, Goodpasture's syndrome, Henoch-Schonlein purpura
  • Cryptogenic organising pneumonia
  • Eosinophilic pneumonia
  • Pulmonary alveolar proteinosis
  • Aspiration pneumonitis
  • Sarcoidosis
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