Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Lung volumes are low , exaggerating heart size and bronchovascular markings . Streaky opacities in the left lower lung suggest minor atelectasis . Lungs are otherwise clear without focal consolidation . There is no evidence of pneumothorax . Cardiomediastinal contours are normal . There is slight calcification of the aortic knob . Osseous structures are unremarkable . No radiopaque foreign bodies .
    OUTPUT:
    
No definite evidence of acute cardiopulmonary disease ; streaky left lower lung opacity is minimal and suggestive of slight atelectasis . Low lung volumes .