Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal portable chest radiograph demonstrates low lung volumes and interval placement of right PICC this terminates in the right atrium . Mild bibasilar atelectasis persists as does mild vascular congestion although mildly improved . The heart size is mildly enlarged . There are no new focal consolidations . No pneumothorax .
    OUTPUT:
    
No findings to suggest pneumonia .