The chest x-ray is technically inadequate.
AP view has magnified the cardiac shadow. There is increased lucency over the left lung field, but the x-ray is rotated. The costo-phrenic recess and part of the diaphragms are missing.
Despite technical faults, a subtle but important finding is that the right humeral head is out of its socket, indicating the presence of a right sub coracoid dislocation.
The patient had a dedicated right shoulder x-ray which showed an anterior dislocation of the right shoulder which was subsequently reduced.
ABCDEFGHI method of chest x-ray interpretation (got off internet) can avoid errors.
A – Airway – trachea and main bronchi.
B – Bones & joints.
C – Cardiac shadow.
D – Diaphragms.
E – Effusion
F – lung Fields
G- Gastric bubble.
H – Hilum
I – Interpretation