Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads are present . Mild basal atelectasis . No convincing signs of pneumonia . No large effusion or pneumothorax . No signs of congestion or edema . Cardiomediastinal silhouette appears unremarkable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No signs of pneumonia . Mild basal atelectasis .