Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior film , inspiratory volumes are lower . The cardiomediastinal silhouette is more pronounced , likely accentuated by low lung volumes . There is patchy opacity in both at both bases , more pronounced medially . There is minimal blunting of both costophrenic angles , consistent with small effusions . Mild vascular plethora is likely accentuated by low inspiratory volumes . Doubt overt CHF .
    OUTPUT:
    
New patchy opacity at both lung bases most likely represents atelectasis in the setting of lower lung volumes . However , the differential diagnosis could include areas of aspiration or early infectious infiltrate . Small bilateral effusions are likely now present .