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What is the difference between emphysema and pneumonia?

emphysema | pneumonia |

As nouns the difference between emphysema and pneumonia

is that emphysema is an abnormal accumulation of air in tissues, most commonly the lungs while pneumonia is an acute or chronic inflammation of the lungs caused by viruses, bacteria or other microorganisms, or sometimes by physical or chemical irritants.

emphysema

Noun

(-)
  • (pathology) An abnormal accumulation of air in tissues, most commonly the lungs.
  • (medicine) Pulmonary emphysema, a chronic lung disease.
  • Derived terms

    * emphysematous * emphysemic

    pneumonia

    Noun

  • An acute or chronic inflammation of the lungs caused by viruses, bacteria or other microorganisms, or sometimes by physical or chemical irritants.
  • * '>citation
  • Derived terms

    * single pneumonia * double pneumonia