Presentation
Pain post eating.
Patient Data
![](https://prod-images-static.radiopaedia.org/images/7287517/3ce87ae27a7ba59df5a7b842a46470_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7287570/c030a8bee95757a41f4717b0eeb0ad_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7287717/24a9490c6d09e37df050c8812b3593_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7287863/27a506928f614f03dad5e30bc773b6_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7287517/3ce87ae27a7ba59df5a7b842a46470_big_gallery.jpg)
Pneumomediastinum, with paraesophageal/posterior mediastinal gas tracking superiorly around the infrahyoid strap muscles. Small bilateral pleural effusions, marginally larger on the left, with associated medial bibasal collapse.
An obliquely oriented, 2.1cm long X 0.4cm wide, curvilinear hyperdensity previously seen within the superior mediastinal esophagus, anteriorly adjacent to T1/2.
Within the imaged upper abdomen, a small fluid-density collection is seen around to gallbladder and hepatorenal pouch, however, there is no evidence of gallbladder wall thickening or gallstone identified. A very small fluid density collection is noted within the right anterior perirenal space. Upper abdominal organs are of unremarkable appearance.
Conclusion:
- Pneumomediastinum, reduced/redistributed since the previous examination.
- 2.1cm curvilinear hyperdensity may represent a foreign body.
Case Discussion
Culprit turned out to be swallowed chop bone.