Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , cardiomediastinal silhouette and hilar contours are normal . Ill - defined opacities at the left lung base possibly correlate with multiple nodules better evaluated on the recent CT torso examination from ___ . There is no effusion or pneumothorax .
    OUTPUT:
    
Ill - defined left lung base opacities which possibly correlate with nodules better evaluated on recent CT examination .