Here the trachea and mediastinum are deviated to the right.
Are they PUSHED or PULLED?
There is opacification of the left lower hemithorax due to a pleural effusion (fluid gathering in the pleural space). This has PUSHED the whole mediastinum to the right.
In this case the patient was found to have mesothelioma, a malignancy of the pleura related to asbestos exposure.