Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Lungs are clear bilaterally without focal consolidation , effusion , or pneumothorax . Heart size is mildly enlarged . The mediastinal contour is somewhat prominent , likely reflecting ectatic vasculature . Bony structures are intact . No definite signs of congestive heart failure .
    OUTPUT:
    
Top normal heart size without definite signs of pneumonia or CHF . Please refer to subsequent CT of the chest for further details .