Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is indistinctness of the pulmonary vasculature suggesting mild interstitial edema . There is no effusion or confluent consolidation . Cardiac silhouette is enlarged but unchanged . Atherosclerotic calcifications noted at the aortic arch . No acute osseous abnormality detected .
    OUTPUT:
    
Mild interstitial edema without confluent consolidation .