Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low . Overlying EKG leads are present . Allowing for low lung volumes , there is no evidence of pneumonia or edema . No large effusion or pneumothorax is seen . The heart size is difficult to assess given low lung volumes . Mediastinal contour is normal . No acute bony abnormalities seen .
    OUTPUT:
    
Limited , negative .