Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest was obtained . There lung volumes are low . Allowing for this , no focal consolidation , pleural effusion or pneumothorax is detected Linear opacities in the right base are likely atelectasis . The heart appears mildly enlarged and the aorta is unfolded and calcified . Note is made of slight elevation of the left hemidiaphragm , but the imaged upper abdomen is otherwise unremarkable .
    OUTPUT:
    
Low lung volumes and basilar atelectasis . Probable mild cardiomegaly .