Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of a right internal jugular central venous line . Median sternotomy wires appear intact . Mediastinal clips are again noted . A previously described tiny left apical pneumothorax is not evident on the current examination . There are stable small bilateral pleural effusions . Overall , aeration of the left lung base appears improved suggesting decreasing atelectasis . Increased opacity in the left upper lobe is likely due to atelectasis . There is mild pulmonary vascular congestion , though no overt interstitial edema . Cardiomediastinal and hilar contours are unchanged from prior .
    OUTPUT:
    
1 . Stable small bilateral pleural effusions with improved aeration of the left lung base . 2 . Probable left upper lobe atelectasis 3 . Increased pulmonary vascular congestion without overt interstitial edema .