The chest x-ray shows
The PA chest x-ray shows obscuration of the right heart border by a density. The lateral chest x-ray shows severe form of pectus excavatum. There is no air space opacity or collapsed lung segment overlapping the hear in the lateral view.
3 causes of right heart border silhouetting are:
- Right middle lobe pneumonia involving the medial segment.
- Right middle lobe collapse involving the medial segment.
- Pectus excavatum.