Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest are provided . Evaluation through the lower lung is limited due to underpenetrated technique . Allowing for this , no definite signs of pneumonia or CHF . No large effusions are seen . Aorta is unfolded . The heart size is within normal limits . The bony structures appear intact .
    OUTPUT:
    
Limited , negative .