Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to chest radiographs from ___ , platelike atelectasis in bilateral lower lungs has worsened . Bibasilar atelectasis persists . Lung volumes remain low . Small right pleural effusion has minimally improved . No appreciable effusion on the left . There is mild central vascular congestion without overt pulmonary edema , unchanged . No focal consolidation . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
1 . Worsening bilateral lower lobe and bibasilar atelectasis . 2 . Minimally improved small right pleural effusion . 3 . Unchanged mild central vascular congestion without overt pulmonary edema .