Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes accentuate the pulmonary vasculature , limiting evaluation of early changes related to vascular congestion . There is no overt interstitial pulmonary edema . There are no focal opacities concerning for pneumonia . The cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
No evidence of overt interstitial pulmonary edema but low lung volumes limit assessment of cardiovascular status . If continued clinical concern for fluid overload , repeat radiographs can be performed after with improved lung volumes .