Presentation
Shortness of breath.
Patient Data
Age: 50 years
Gender: Male
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Veiling opacity in the right hemithorax, most in keeping with a pleural effusion.
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Erect projection confirms the presence of a moderate-large pleural effusion. There is also a smaller left sided pleural effusion.
Case Discussion
On supine projections, pleural effusions produce a "veiling opacity", which is due to pleural fluid preferentially collecting posteroinferiorly in the pleural space. On erect films, pleural effusions are a basal opacity with a meniscus.
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