Presentation
Increasing shortness of breath. Cough for 3 days. Past history of left heart failure.
Patient Data
Age: 75 years
Gender: Male
From the case:
Subpulmonic pleural effusion
![](https://prod-images-static.radiopaedia.org/images/14011712/043378c6be76b5619522928d4e7f69_thumb.jpg)
![](https://prod-images-static.radiopaedia.org/images/14011706/649155234c39f3f77467fcd063a082_thumb.jpg)
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Info
![](https://prod-images-static.radiopaedia.org/images/14011712/043378c6be76b5619522928d4e7f69_big_gallery.jpg)
Apparent elevation of the right hemidiaphragm but with a lateralized dome (arrow) on the anterior view and minor but definite fluid tracking up the oblique fissure on the lateral projection (arrow).
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Info
![](https://prod-images-static.radiopaedia.org/images/14011711/29b8e3b6b83716649624120e4ec59d_big_gallery.jpg)
Performed 2 days later following insertion of a drainage catheter
Case Discussion
Subpulmonic effusions sit between the lung and hemidiaphragm, and can be difficult to differentiate from elevated hemidiaphragm on the chest X-ray.