Thursday 20 September 2012

EMQ practice - Chest Radiograph Pathology

Chest radiograph pathology
  • Multiple bilateral nodules between 0.5 and 5cm in a former miner with rheumatoid arthritis
    • Caplan's syndrome
      • Pulmonary manifestation of rheumatoid arthritis (RA) characterised by the presence of pulmonary nodules
      • Patients have RA and are exposed to coal dust, or other dusts like silicosis and asbestos
      • Cough, shortness of breath, and haemoptysis
      • RA can also cause fibrosing alveolitis, pleural effusions, and obliterative bronchiolitis
      • RA can also affect the cricoarytenoid joints leading to upper respiratory tract infection
  • Kerley B lines, bat-wing shadowing, prominent upper lobe vessels, cardiomegaly
    • Left ventricular failure
      • Typical
  • Trachea deviated to the right, horizontal fissure and right hilum displaced upwards
    • Right lower lobe collapse
      • Left lower lobe there is no elevation of the horizontal fissure because there IS no horizontal fissure
      • Instead there is a hazy white appearance over a large part of the left lung field
  • Numerous calcified nodules sized less than 5mm located predominantly in the lower zones of the lungs
    • Previous varicella pneumonitis
      • Multiple small, calcified nodules may occur after varicella pneumonitis
      • Other causes include TB, histoplasmosis, and chronic renal failure
  • Double shadow right heart border, prominent left atrial appendage, left main bronchus elevation
    • Mitral stenosis
      • Calcification of mitral valve may also be seen, as may pulmonary oedema
      • Left ventricular enlargement absent despite pulmonary oedema

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