Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart size and cardiomediastinal contours are normal . Small linear opacities in both lung bases are consistent with atelectasis . No focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
Bibasilar atelectasis . No focal consolidation .