Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal , and hilar contours appear unchanged , within the limitations of technique . There is again mild - to - moderate relative elevation of the right hemidiaphragm compared to the left . A right mid lung opacity has resolved since the prior study . There are , however , new streaky opacities in the right lower lobe with otherwise clear lungs . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Patchy new right basilar opacification , which would perhaps be compatible with atelectasis associated with persistent elevation of the right hemidiaphragm , but pneumonia could also be considered in the appropriate setting .