Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . Streaky opacities are seen at the bases of the lungs bilaterally on the frontal view . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Streaky opacity seen at the base of the lungs bilaterally on the frontal view is likely secondary to atelectasis . No definite focal consolidations concerning for pneumonia identified .