Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . Better seen on the current exam than on prior chest radiograph is a 1 cm right upper lobe nodule and an approximately 3 cm left lower lobe nodule . Several smaller nodules documented on the most recent CT chest are not visualized on the current exam . There is no pleural effusion or pneumothorax . No focal opacity concerning for pneumonia is visualized . Again seen is asymmetry of the breast tissue .
    OUTPUT:
    
1 . Unchanged right upper lobe and left lower lobe nodules , which are better seen on the current exam than on prior radiograph . Several smaller nodules documented on CT chest are not visualized on the current exam . 2 . No pleural effusion , pneumothorax , or pneumonia .