Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild enlargement of cardiac silhouette slightly likely exaggerated by low lung volumes . Mediastinal contour appears stable . There stable mild pulmonary vascular congestion without edema . There is bibasilar atelectasis that has increased since prior study with new left lower lobe collapse . Also seen is a possible new left upper lobe consolidation which could represent a superimposed pneumonia . There are no focal consolidations . There is interval placement of an endotracheal tube with the tip terminating 1 .5 cm superior to the carina .
    OUTPUT:
    
1 . Increased bibasilar atelectasis with new left lower lobe collapse and possible superimposed pneumonia of the left upper lobe . 2 . Stable mild pulmonary vascular congestion without edema . 3 . Interval placement of endotracheal tube with the tip terminating 1 .5 cm superior to the carina .