Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged with a left ventricular configuration . Lung volumes are very low , probably accounting for streaky opacities in the posterior lower lobes suggesting minor atelectasis . A mildly prominent interstitial abnormality could suggest mild congestion but is of uncertain significance noting very low lung volumes which may exaggerate substantially exaggerate normal interstitial markings .
    OUTPUT:
    
Very low lung volumes ; mild interstitial prominence , possibly within normal range for technique versus mild congestion or diffuse inflammatory change .