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Asbestos Exposure. Frans Naude. Asbestos Exposure. Inhalation of asbestos fibers. Asbestosis Def : diffuse interstitial pulmonary fibrosis that occurs secondary to the inhalation of asbestos fibers. Diagnostic imaging chest I 2-38 . Radiography. May be normal (10-20% )

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asbestos exposure1
Asbestos Exposure
  • Inhalation of asbestos fibers


    • Def : diffuse interstitial pulmonary fibrosis that occurs secondary to the inhalation of asbestos fibers
  • May be normal (10-20%)
  • Peripheral lower zone predominance
    • Irregular reticular or small nodular opacities
    • "Shaggy" cardiac silhouette in advanced disease
  • Late: Endstage honeycombing
  • Pleural plaques (25%)
  • Lung cancer: Lower zone predominance in contrast

to the upper zone predominance in the general population of smokers

  • Progressive massive fibrosis extremely rare

Small subpleural nodules (straight arrows),

Patchy ground-glass opacities (curved arrows),

Interlobular septalthickening (arrowhead) suggestive of early-stage asbestosis.


Asbestosis : subpleuralconsolidation (arrow) in the lower lobe of the left lung, with reticulation, ground-glassopacities, and honeycombing

pt with asbestos exposure subpleural consolidation arrow pleural thickening arrowheads and effusion
Ptwith asbestos exposure: subpleural consolidation (arrow),pleural thickening (arrowheads) and effusion.
subpleural lines
Subpleural Lines
  • curvilinear opacity a few millimeters or less in thickness,
  • less than 1 cm from the pleural surface
  • nonspecific indicator of atelectasis, fibrosis, or inflammation
  • more common in patients who have asbestosis than in those who have IPF or other causes of UIP
asbestosis vs idiopathic pulmonary fibrosis
Asbestosis VS idiopathic pulmonaryfibrosis
  • IPF more basal and sub pleural fibrosis
  • presence of parietal pleural thickening in association with lung fibrosis is the most important feature differentiating asbestos-

induced pulmonary fibrosis from IPF

  • asbestos bodies in bronchoalveolar lavage fluid
  • H/O asbestos exposure
  • RadioGraphics 2006; 26:59–77 Pneumoconiosis: Comparison of Imaging and Pathologic Findings
  • Diagnostic imaging chest I 2-38
  • High-Resolution CT of the Lung -webb