Complete White Out’ on the CXR has a limited number of causes.
The differential diagnosis can be shortened further with one simple observation - the position of the trachea.
Is it central, pulled or pushed from the side of opacification?
Pulled
-Pneumonectomy(usually associated with a segmental rib defect)
-Total Lung Collapse
-Pulmonary Agenesis
Central:
-Consolidation
-Mesothelioma
Pushed:
-Pleural effusion
-Diaphragmatic hernia
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