Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate well - aerated lungs which are clear . Lung volumes are low , which could potentially mimic the appearance of cardiomegaly . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes could potentially mimic the appearance of cardiomegaly . If clinically concerned , imaging can be repeated with an emphasis on full inspiration . Otherwise , no acute cardiopulmonary abnormality .