Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , accentuating the pulmonary vasculature . The presence of interstitial edema , focal consolidation or aspiration is difficult to discern given the low lung volumes and prominent soft tissue . There is at least some atelectasis at the left base . Size of the cardiac silhouette is enlarged by low lung volume .
    OUTPUT:
    
Limited exam by low lung volumes . Mild pulmonary edema can not be excluded .