Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . As compared to the prior examination , there is slightly increased conspicuity of the interstitial lung markings which may be consistent with interstitial edema . Linear opacities at the right base are unchanged and likely represent atelectasis or scarring . There are small bilateral pleural effusions . Dense opacity at the left base is new and obscures the left hemidiaphragm . This could be due to atelectasis and effusion ; however , the presence of a consolidation or pneumonia can not be excluded . The bones are diffusely demineralized . There are remote bilateral rib fractures and compression deformities of thoracic vertebra .
    OUTPUT:
    
Mild congesiton , pleural effusions and basilar atelectasis . Please refer to subsequent CTA chest for further details .