Pneumonia

Changed by Craig Hacking, 26 Aug 2015

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Pneumonia is a general term in widespread use, defined as infection within the lung. It is due to material, usually purulent material, filling the airspaces (alveoli). This is in contrast to pneumonitis, which is inflammation of the pulmonary interstitium.

Pneumonias can be classified by:

aetiology
- infection
  - viral
  - bacterial
  - mycobacterial
  - fungal
- aspiration
- lipid: lipoid pneumonia
method of spread (a pathological description)
- bronchopneumonia
- lobar pneumonia

Of note, some of the interstitial lung diseases are termed pneumonia rather than pneumonitis.

See consolidation article.

~~-Pneumonia is a general term in widespread use, defined as infection within the lung.Pneumonias can be classified by:<ul>~~
+Pneumonia is a general term in widespread use, defined as infection within the lung. It is due to material, usually purulent material, filling the airspaces (alveoli). This is in contrast to <a href="/articles/pneumonitis">pneumonitis</a>, which is inflammation of the <a href="/articles/pulmonary-interstitium">pulmonary interstitium</a>.Pneumonias can be classified by:<ul>
~~-</ul>Of note, some of the <a href="/articles/interstitial-lung-disease">interstitial lung diseases</a> are termed pneumonia rather than pneumonitis.~~
+</ul>Of note, some of the <a href="/articles/interstitial-lung-disease">interstitial lung diseases</a> are termed pneumonia rather than pneumonitis.See <a title="Air space consolidation" href="/articles/air-space-consolidation">consolidation </a>article.

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