Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is limited due to patient rotation . Heart size is normal . The aortic knob is calcified . There is no overt pulmonary edema , but crowding of bronchovascular structures is noted . Linear and ill - defined opacities within the left upper and mid lung fields are re - demonstrated , better assessed on the recent chest CT , and may reflect residual inflammation or infection . Postsurgical changes of the right lung with evidence of volume loss with tenting of the right hemidiaphragm and linear opacities in the right upper lung field compatible with prior radiation fibrosis are re - demonstrated . No focal consolidation , pleural effusion or pneumothorax is present . Bilateral shoulder arthroplasties are visualized .
    OUTPUT:
    
Limited exam . Postsurgical and post treatment changes in the right lung , similar compared to the prior exam . Linear and ill - defined in opacities in the left upper and mid lung fields are re - demonstrated , likely the residua of prior infection or inflammation .