Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is borderline enlarged . The mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . There is minimal streaky opacity in the lung bases likely reflective of atelectasis , but no focal consolidation is demonstrated . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Probable bibasilar atelectasis . No definite focal consolidation to suggest pneumonia .