Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to radiograph 40 minutes prior , no significant interval change seen . Again seen is elevation of the left hemidiaphragm with associated left basilar opacity which is a combination of moderate sized left pleural effusion , basilar atelectasis , and possible underlying infection . The right lung is clear . No change in severely dilated pulmonary arteries or enlarged cardiomediastinal silhouette . No pneumothorax . Vertical rod with screws in the right humerus again seen .
    OUTPUT:
    
1 . No significant change compared to 40 minutes prior . 2 . Left basilar opacity , likely represents a combination of moderate sized left pleural effusion , atelectasis and possible underlying infection . Clinical correlation is recommended . 3 . No change in severely dilated pulmonary arteries .