Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate mildly low lung volumes with exaggeration of the cardiac silhouette and bronchovascular crowding . Allowing for this , heart size is normal . There is no focal consolidation , pleural effusion , or pneumothorax . There is mild interstitial edema . Mild linear atelectasis is noted at the left lung base . Overlying motion artifact on lateral view limits its utility .
    OUTPUT:
    
Mild interstitial edema .