Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided central line terminates in the mid to low SVC , unchanged in position compared to prior radiograph . In comparison to the study from ___ , there has been substantial decrease in the hazy opacifications previously silhouetting the hemidiaphragms . The cardiomediastinal silhouette is unchanged . No pulmonary edema or focal consolidations . No pneumothorax .
    OUTPUT:
    
Improved bibasilar opacifications . This may be related to improved pleural effusion , but could be a manifestation of a more upright positioning of the patient . If the patient 's clinical status permits , PA and lateral chest radiograph may be considered for accurate assessment of pleural effusion .