Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a right - sided hydropneumothorax . Component of pneumothorax is relatively small with a moderate pleural effusion . Right basilar opacity could be due to atelectasis although superimposed pneumonia would certainly be possible . Linear left basilar opacities is likely atelectasis or scarring . Small left pleural effusion is noted . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . Degenerative changes are noted at the shoulders bilaterally .
    OUTPUT:
    
Right - sided hydro pneumothorax . Right basilar opacity could be due to atelectasis although superimposed infection or mass lesion is possible . Small left effusion .