Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Right mid - to - lower lung scarring / atelectasis is again seen , and to a lesser extent left base atelectasis . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . There are questionable subtle , faint nodular opacities seen projecting over the upper lungs without significant change since the prior study , see interval chest CTs for further evaluation . Cardiac and mediastinal silhouettes are stable . No displaced rib fracture is seen .
    OUTPUT:
    
1 . No displaced rib fracture is seen , however , if clinical concern for rib fracture persists , suggest dedicated rib series , which is more sensitive . 2 . Bibasilar linear atelectases / scarring . Otherwise , no significant interval change .