Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large area of somewhat patchy opacity in the right upper zone , with evidence of slight volume loss in the right upper lobe . The appearance is in keeping with findings on the ___ CT scan , though direct assessment for any subtle interval change is limited by differences in the ___ modalities . The cardiomediastinal silhouette remains midline and is grossly unchanged . Mild unfolding of the aorta is again noted . There is somewhat patchy atelectasis at the left lung base , which is new compared with ___ and probably also ___ . No frank consolidation is identified . No evidence of CHF . No gross effusion . No pneumothorax detected .
    OUTPUT:
    
Patchy partially confluent opacity right upper zone with mild right upper lobe volume loss . Please see comment above . Assessment of this finding is best correlated with the full clinical scenario . No pneumothorax detected . Patchy subsegmental atelectasis left base . Attention to this area on followup films is recommended to exclude evidence of aspiration or developing pneumonia .