Pneumonia is defined as inflammation
of the lungs and does not imply inflammation due to infectious agents.
While the classification of pneumonias
and the terminology are often confusing, bronchopneumonia refers to inflammation
involving alveoli and their associated airways, while interstitial pneumonia
(also known as pneumonitis) only involves the interstitium with no accumulation
of inflammatory material in the alveoli and airways. Lobar pneumonia merely indicates
that the pathology is localised to a single lobe.
The type of pneumonia can also be classified
according to the predominant cell type involved (e.g. eosinophilic pneumonia),
the cause (e.g. aspiration pneumonia) and the type of reaction in the lung (e.g.
PNEUMONIA: Clinical signs
PNEUMONIA: Clinical outcome
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