Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Underpenetration limits assessment . Allowing for this , the lungs are clear . There is no pleural effusion or pneumothorax . Mild congestion difficult to exclude . There is no frank edema . Cardiomediastinal silhouette is unchanged . Bony structures are intact .
    OUTPUT:
    
No signs of pneumonia . No overt edema though mild congestion difficult to exclude in the correct clinical setting .