Chronic unilateral airspace opacification
Dr Jeremy Jones and Dr Behrang Amini et al.
Chronic unilateral airspace opacification is a subset of the differential diagnoses for airspace opacification. An exhaustive list of all possible causes of chronic unilateral airspace opacities is long, but a useful framework is as follows:
- neoplastic
-
infective
- tuberculosis
- fungal lung infection (especially in immunocompromised patients)
- incompletely treated infection
- inflammatory (usually bilateral, but may be asymmetrical.)
-
other
- lipoid pneumonia
- pulmonary haemorrhage (not chronic, but recurrent)
- alveolar proteinosis (usually bilateral, by may be asymmetrical.)
- radiation pneumonitis
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