CHORUS

Collaborative Hypertext of Radiology

Respiratory system

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atelectasis

Types:
• obstructive atelectasis (resorptive) airless lung
  • tumor
  • foreign body
  • mucous plug
  • stricture
• passive atelectasis (compressive or elastic recoil)
  • low inspiratory volumes
  • pleural effusion
  • pneumothorax
  • pleural masses
• adhesive (decreased surfactant)
  • hyaline membrane disease
  • pulmonary embolus with infarction
• cicatrization (fibrosis: local or general leading to volume loss)

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