Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slight increase in interstitial markings bilaterally suggests a component of mild interstitial edema . The right costophrenic angle is similar in appearance as compared to the prior study . No large pleural effusion is seen . No definite focal consolidation . Slight prominence of the hila may relate to slight fluid overload . The cardiac and mediastinal silhouettes are similar .
    OUTPUT:
    
Mild increase in interstitial markings bilaterally and slight prominence of the hila may be due to mild edema .