Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volume is persistently low , but there is no evidence of consolidation suspicious for pneumonia . Heart size is normal with aorta mildly elongated . There is no pleural effusion or pneumothorax . Mild central venous dilatation , significance uncertain .
    OUTPUT:
    
Status quo , except for mild central venous dilatation .